Warblex
电拉管调制器
🗣️ 情景例句
Well, thanks so much for your help and your time,
好的， 感谢你的帮助 用了你的时间。
Did you go to the picnic this morning?
你今早去野餐了吗？
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。