Bidirectional microphone
[电] 双向微音器
🧩 词语组成解析
[计] 双向的
🗣️ 情景例句
What is your cancellation policy?
我怎么退票？
Better be the head of an ass than the tail of a horse.
宁为驴头，不为马尾。
Modern machines can make the copy bigger or smaller, lighter or darker and copy onto both sides of the paper.
代机器可以放大、缩小、制作较亮的或较暗的复印件，也可以在纸的两面复印。