Permactron
双注电子波管
🗣️ 情景例句
Why can't I design dresses for you here at home?
为什么我不能在家里为你设计服装呢？
Shall we take a break?
我们是否应该休息一下？
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。