Phyloembryogenesis
胚胎系统发育
🗣️ 情景例句
Have you ever owned an animal?
你曾养过动物吗？
It is my job to introduce the foreign guests who will be spending the week with us here.
我的责任是介绍这些将与我们共度这一周的外国客人们。
I want some envelopes,please.
请给我拿几个信封。