tadpole是什么意思_tadpole的用法_词性_词根

双语例句

The survival rate for tadpoles is only 20 to 30 percent.

蝌蚪的存活率仅为20%到30%。
When I was a kid, I heard the story of tadpoles looking for their mother.

当我还是个孩子的时候，我听过蝌蚪找妈妈的故事。
Tadpoles are the larvae of frogs and toads.

蝌蚪是青蛙和蟾蜍的幼体。
Small tadpole-shaped cold-water fishes with pelvic fins forming a sucker; related to lumpfish.

小的蝌蚪形冷水鱼，长有形成吸盘的腹鳍；与圆鳍鱼科有关。
The tadpole has become a frog.

这个蝌蚪已长成青蛙。
The tadpole has become a frog .

这个蝌蚪已长成青蛙。
Tadpole 1: Where is our Mummy?

小蝌蚪1：我们的妈妈在哪里？
Tadpole 4: Yes, she is our Mummy.

小蝌蚪4：是的，她是我们的妈妈。

近义词

pollywog

百科

蝌蚪（英文名：Tadpole）是无尾目蛙科动物。蝌蚪身体呈纺锤形，无四肢、口和内鳃，生有侧扁的长尾，头部两侧生有分枝的外鳃。它生活的最适温度为23~25℃。其靠体内残存的卵黄供给营养，以群居为主。蝌蚪是青蛙的幼体。蝌蚪的牙齿叫唇齿，在光学显微镜下面看，就像一根根的针，放在电子显微镜下面看，像一排匕首；它仅有一个舌原基；它不仅样子像鱼，运动也像鱼，肌肉发达的尾巴提供推力，上下或左右摆动，推动它前进；蝌蚪变化还会经历表皮细胞层数增加，皮肤色素沉着，原肾消失，中肾发育，骨化增强，颅骨重塑，侧线系统的丧失等等过程。

释义

the tailed aquatic larva of an amphibian (frog, toad, newt, or salamander), breathing through gills and lacking legs until its later stages of development

蝌蚪。

词源

"late 15th cent.： from Old English tāda ‘toad' + POLL （probably because the tadpole seems to consist of a large head and a tail in its early development stage）."