🧩 词语组成解析
placenta
[plə'sentə]
n. 胎盘，胎座;
🗣️ 情景例句
I need the bank to finance something.
我需要银行提供某件东西的贷款。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。