Ethines
[化] 炔烃
🗣️ 情景例句
Ladies and gentlemen,
各位女士， 各位先生，
Each item is to be wrapped separately in gerase-paper.
每件货物应单独用油纸包好。
Most of us fail in our efforts at self-improvement because our schemes are too ambitious and we never have time to carry them out.
我们大多数人想自我完善却遭到失败，这是因为我们的规划过于宏大，而又根本没有时间去实施。