Ptyalolithotomy
[医] 涎石切除术
🗣️ 情景例句
Excuse me. Is this seat taken?
对不起 ，请问这个座位有人吗？
I can handle it myself.
我会自己想办法的。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。