Alleviator
n. 缓和剂\\n[医] 缓和剂
🏥 医学释义
①缓和剂 ②减轻装置
🗣️ 情景例句
But if I have my tonsils out tomorrow,
但是我如果明天切除扁桃腺，
Hi, Jack, where do you live now?
你好，杰克，你现在住哪儿？
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。