Dipmeter
栅陷振荡器, 栅流陷落式测试振荡器
🗣️ 情景例句
If the owners don't claim the dog in forty-eight hours,
如果狗的主人在四十八小时内不认领，
Opportunity seldom knocks twice.
机不可失，失不再来。
Yes, I think we do. Lucy, we need some more hot water. Can you go and get some, please?
是的，再要些吧。露西，我们还要热开水。请你去弄些来，行吗？