Niklor
氯化苦
🗣️ 情景例句
That would be very helpful.
你这样做帮忙可大噢。
You don not have to reveal your age.
你不必透露你的年龄。
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。