Permutator
转换开关, 变[交]换器
🗣️ 情景例句
You would be well-advised to book in advance.
你还是提前预订较为稳妥。
I need the change for the stamp machine.
我需要投入自动售邮票机的零钱。
The head office agreed to the lower price you asked for.
总公司已同意你要求的较低价格。