Trephinement
[医] 环钻
🗣️ 情景例句
I'm very tired.
我很累了。
What kind of climate do you have?Is it mild?
你们那里的天气怎么样？它是不冷不热的吗？
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。