Nondirectional microphon
[电] 无定向微音器
🧩 词语组成解析
[电] 无向性
🗣️ 情景例句
I did , but everything is OK,so I decided to come back.
回去了， 但一切安好。于是我决定回来。
You cannot have two forenoons in the same day.
一日之中不可能有两个上午。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。