Blastogeny
[医] 种质演变
🗣️ 情景例句
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
Now read,please.
现在请大家读。
At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk.
在洛杉矶的一个特设的游泳池里，孩子们甚至在还没有学会走路时就已经能熟练地在水下屏住呼吸了。