Ethinylation
乙炔化
🗣️ 情景例句
Keep along this road
沿着这条路
The wise man knows he knows nothing,the fool thinks the knows all.
聪明人自认一无所知，愚笨人自负无所不晓。
After three hours, the men stopped for a meal break.
3小时之后，工人们停下来吃饭。