Haid
abbr. hand-emplaced acoustic intrusion detector 手工放置的音响入侵探测器
🗣️ 情景例句
Perfect! Alexandra will love it!
太好了！ Alexandra会喜欢的！
I hope you will succeed.
我希望你会成功。
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。