Aethylenum
乙烯
🗣️ 情景例句
Have you ever been to Niagra Falls?
你去过尼亚拉加瀑布吗？
She was fully equipped for the climbing.
她装备齐全，准备登山。
Now the manager has found that things are missing.
现在，经理已发现有东西丢失。