O.
[医] O型, 菌体型, 不动型(细菌)
✅ 同义词
🗣️ 情景例句
How are you?
你好吗？
He knows much who knows how to hold his tongue.
懂得缄默的是明白人。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。