词典释义：
not valid or legally binding
无效的
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the contract was void .这合同无效。
(of speech or action)ineffectual; useless
（话语，行动）无效的；无用的
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all the stratagems you've worked out are rendered void .你想出的那些计谋都落空了。
completely empty
空的；空无所有的
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void spaces surround the tanks .油箱周围空无一物。
[predic.](
没有的；缺乏的
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what were once the masterpieces of literature are now void of meaning .曾经是文学名著的东西现在一点意义都没有了。
〈正式〉 （职位）空缺。
[predic.](in bridge and whist)having been dealt no cards in a particular suit
（桥牌和惠斯特用语）缺门的。
a completely empty space
真空；空处；空位
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the black void of space .漆黑空洞的太空。
an emptiness caused by the loss of something
（因失去某物而引起的）空虚，空白
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the void left by the collapse of the regime .政权垮台后留下的空白。
an unfilled space in a wall, building, or structure
（墙、建筑物上的）孔隙。
(in bridge and whist)a suit in which a player is dealt no cards
（桥牌和惠斯特用语）缺门。
〈主美〉 宣告…无效
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the Supreme court voided the statute .最高法院宣布这项法令无效。
discharge or drain away (water, gases, etc.)
排放（水、气体等）。
【主医】 排泄（废物）。
[usu. as adj.
倒空（容器）；疏空（空间）。
"Middle English （in the sense ‘unoccupied’）： from a dialect variant of Old French
