Ethinylation
乙炔化
🗣️ 情景例句
And you also need bodies to do repainting?
你们也需要人手来重新粉刷吗？
Cats hide their paws.
大智若愚，大巧若拙。
Two assistants, mounted on tame elephants, control the captive from either side,
两位助手骑在驯服的象的背上，从两侧控制新捕的象，