Acetylic
a. 乙酰基群的
🗣️ 情景例句
Five five five...one seven two oh. Hello? 555-1720
喂 喂?
What do you want?
干嘛？
The dish now had to be lifted vertically because one edge was resting against the side of the canal.
这次，盘子必须垂直吊出水面，因为盘子的一边紧靠着运河河岸。