🧩 词语组成解析
platoon
[[plə'tu:n]]
n. 排, 一组, 一群人
🗣️ 情景例句
Smoking sucks!
吸烟太糟了。
Parents usually put a small red paper packet under their child's pillow.
父母常常会在孩子枕头下放一个小红包。
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。