词典释义：
each of the two upper limbs of the human body from the shoulder to the hand
手臂
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she held the baby in her arms. 她把婴孩抱在怀里。
each of the forelimbs of an animal
（动物的）前肢。
a flexible limb of an invertebrate animal, e.g. an octopus.
（无脊椎动物如章鱼等的）灵活的肢体。
a sleeve of a garment
（衣服的）袖子。
an ability to bowl, pitch, or throw a ball skillfully
（熟练投球、掷球或抛球的）能力
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he has a good arm. 他是投球高手。
used to refer to the holding of a person's arm in support or companionship
手臂（挽住以示支撑或陪伴）
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as they walked he offered her his arm 他们走着的时候，他让她挽住他的手臂
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he arrived with a pretty girl on his arm. 他手挽着一个漂亮女孩来了。
used to refer to something perceived as powerful or protective
［用 于表示力量或保护］ 手臂
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they have extended the arm of friendship to developing countries. 他们将友谊之手伸向了发展中国家。
a thing resembling an arm in form or function, in particular
（形状，功能）像手臂的东西，尤指：
a side part of a chair or other seat on which a sitter can rest their arm
（椅子或座位的）扶手。
a narrow strip of water or land projecting from a larger body
狭长的延伸出的陆地；狭长港湾
a large branch of a tree
大树枝。
〈喻〉 长而窄的形状（或物体）
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a long arm of sunshine. 一片狭长的阳光。
a branch or division of a company or organization
（公司或组织的）部门
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the political arm of the separatist group. 分裂主义集团的政治部门。
one of the types of troops of which an army is composed, such as infantry or artillery
兵种(如步兵，炮兵）。[origin: also understood as a figurative use of <Bold>ARM</Bold><Superscript>2</Superscript>.]
【数】 形成角的边。
supply or provide with weapons
（以武器）装备
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both sides armed themselves with grenades and machine guns. 双方都用手榴弹和机枪武装自己。
supply or provide with equipment, tools, or other items in preparation or readiness for something
提供（设备、工具或其他物品）
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she armed them with brushes and mops. 她给他们刷子和拖把。
activate the fuse of (a bomb, missile or other explosive device) so that it is ready to explode
使（炸弹、导弹或其他爆炸装置）处于准备引爆的状态。
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arm in arm (of two or more people） with arms linked (两人或多人）臂挽臂地 -
as long as one's (或someone's ）arm informal very long 〈非正式〉 很长，十分长I have a list of vices as long as your arm. 我的恶习一大堆 -
at arm's length away from the body, with one's arm fully extended 以一臂之远，在伸手可及之处I held the telephone at arm's length. 我把电话放在我伸手可及的地方 -
beyond arm's reach 见 后面within arm's reach .cost an arm and a leg informal be extremely expensive 〈非 正式〉 十分昂贵的 -
give one's right arm informal used to convey how much one would like to have or do something 〈非正式〉 付出极大的代价I'd give my right arm to go with them. 为了和他们一起去，我愿付出极大代价 -
in arms (of a baby） too young to walk (婴儿）只能抱在怀里，太小不会走路a babe in arms. 还抱在怀里的小孩 -
into the arms of into the possession or control of 被…拥有；受…控制the violin passed into the arms of a wealthy dilettante. 那把小提琴落到了一个对音乐一知半解的有钱人手里 -
keep someone/thing at arm's length avoid intimacy or close contact with someone or something 避免与(人，物）亲近(或接近） -
the long (或strong ）arm of the far-reaching power, authority, or influence of 深远的威力(或权力、影响）the long arm of the law caught up with him. 他终于难逃法网 -
put the arm on N. Amer. informal attempt to force or coerce (someone） to do something 〈北美，非正式〉 强迫，迫使，胁迫she started putting the arm on them for donations. 她开始强迫他们捐钱 -
under one's arm between one's arm and one's body 在腋下Meryl tucked the papers under her arm. 梅里尔把文件夹在腋下 -
with open arms with great affection or enthusiasm 友好地，热烈地schools have welcomed such arrangements with open arms. 学校十分欢迎这样的安排 -
within (或beyond ）arm's reach near (or not near） enough to reach by extending one's arm 伸手可及(或不可及）的
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arm wrestle/wrestling 掰手腕
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(the) left/right arm 左臂/右臂
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strong/warm arms 强壮的手臂/温暖的怀抱
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arm in arm 臂挽臂地
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under one's arm 在腋下
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in sb's arms = in the arms of sb 在某人怀里；被某人抱着
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hold sb into one's arms 把某人抱在怀里
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fall into one's arms 投入某人的怀抱
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put one's arm around/round sb 搂住某人
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reach out/offer/break/hurt one's arms 伸出/折断/伤了某人的手臂
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cost/pay an arm and a leg (使)花一大笔钱
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"Old English
