记忆方法
将“ovum”分解为“o-”和“-vum”，前者可以联想到“ocean”（海洋），后者与“volume”（体积）谐音。想象一个微小的“海洋体积”，这样就可以形象地记住“ovum”是“卵细胞”的意思。
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中文词源
ovum 卵子
来自拉丁语ovum,卵，词源同egg.
英语词源
- ovum (n.)
- (plural ova), 1706, from Latin ovum "egg," cognate with Greek oon, Old Norse egg, Old English æg, all perhaps from PIE root *awi- (see egg (n.)).
权威例句
- 1. Once the ovum is released it has a lifespan of 12 to 36 hours.
- 卵子排出后可存活12至36小时。
- 2. By day 11 the ovum begins to attach and implant in the lining of the uterus.
- 到第11天卵子着床嵌入子宫内壁.
- 3. One pc of germ cell approaches to a ovum quietly at first.
- 一个精子一马当先悄悄接近卵子.
- 4. Then you put that ovum into a different female's stomach.
- 然后,将那个卵细胞放到一个不同的雌性腹中.
- 5. One way is taking the cell from a fertilized ovum.
- 一种方法是从受精卵中取出细胞.