Acetyl acid number
[机] 乙酰值
🧩 词语组成解析
n. 乙酰(基)\\n[化] 乙酰; 乙酰基
🗣️ 情景例句
Go for the first prize! i know you are good enough.
争取拿头奖，我知道你行。
To teeter-totter
玩跷跷板
In the pioneering days, however, this was not the case at all.
然而，在登山运动的初期，全然不是这种情况。