Bmci
[化] 芳烃指数值
🗣️ 情景例句
I would like to improve my English pronunciation.
我想改善我的英语发音。
I'm afraid not. She doesn't have any openings in the morning.
恐怕不行。上午她没有空。
I'm sure I can do better than that.
我肯定会超过1分12秒的。