Porefilling
填孔
🗣️ 情景例句
It is also not polite to ask people questions about politics.
另外，问一些关于政治和宗教的问题也是不礼貌的。
Half a loaf is better than no bread.
半片面包总比没有好；有胜于无。
Two factors weigh heavily against the effectiveness of scientific research in industry.
两个因素严重地影响工业里科学研究的效果：