Alkatriyne
[化] 鏈三炔
??? 情景例句
What does that mean in plain English?
你能不能用大白話解釋一下？
Slowly, mountains are worn away by the wind.
山體逐漸被風化了。
The man had connected the air-line to a supply line of oxygen, not compressed air.
這個工人把供氣管接到了氧氣供應管上，而不是接到壓縮空氣管上。