Ethinylation
乙炔化
🗣️ 情景例句
Why not start again and use the right tools for the job?
为什么不重新开始，试试用合适的工具来做呢？
Don't fly till you wings are feathered.
羽毛未丰不要飞。
Their humbler followers, such as partridges, have a like power of strong propulsion, but soon tire.
次于野鸭和鸽子的鸟，如鹧鸪，有相似的巨大推动力，但很快会疲劳。