Dimethylation
二甲基化作用, 二甲基取代作用
🗣️ 情景例句
Where is she today?
她如今在哪？
Beauty is potent,but money is more potent.
美貌固有力，金钱力更大。
The wheels scooped up stones which hammered ominously under the car.
车轮搅起的石块锤击车身，发出不祥的锤击声。