Permutator
转换开关, 变[交]换器
🗣️ 情景例句
Just relax.
不用紧张。
The voice of one man is the voice of no one.
一个人的声音是没有力量的。
The porter went to fetch one and arrive back with the station master,
搬运工跑回去取时刻表，同时请来了站长。