Spiroannulation
[化] 螺增环
🗣️ 情景例句
Good. Do you have any back or knee problems?
好。你的背部和膝关节有什么毛病吗
In the multitude of counsellors there is safety.
谋士多，保安全。
There are some magazines on the television.
电视机上放着几本杂志。