Pachymucosa
粘膜肥厚
🗣️ 情景例句
It is also not polite to ask people questions about politics.
另外，问一些关于政治和宗教的问题也是不礼貌的。
He's absorbed in his book.
他全神贯注地读书。
The golden rule here is spread your risk --
分散你的投资风险。