Permutator
转换开关, 变[交]换器
🗣️ 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4个青少年中就有1位曾经吸过大麻？
We are anxious to know how long it will take you to deliver the goods.
我们急于知道贵方多长时间能交货。
How was this possible?
这种传递是怎样进行的呢？