O. n.
[医] 每夜
🧩 词语组成解析
[医] O型, 菌体型, 不动型(细菌)
abbr. 名词
🗣️ 情景例句
How many are there in your family?
你们家几口人？
It is good to be merry at meal.
席间心情愉快是为上策。
I'm afraid I'm still not very good at it, though.
不过，恐怕我的汉语还是不够好。