🗣️ 情景例句
if you're not going to be happy about it.
假如你会因为这种事而不快乐的话。
I agree. I wish it were cheaper.
是这肃，我真希望它能便宜点。
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。