Session musician
（乐队为录音而雇用的）临时乐师
🧩 词语组成解析
🗣️ 情景例句
I have tea with y colleagues in the afternoon.
下午我和同事喝茶。
What's it to you?
跟你有什么关系？
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。