Acetylic
a. 乙酰基群的
🗣️ 情景例句
OK, we have let you know as early as possible.
好的，我们会让你们尽早知道。
Kinsman helps kinsman, but woe to him that hath nothing.
亲帮亲，邻帮邻，无亲无助你倒霉。
Are there any flowers in the picture?
画里面有花吗？