n.抱怨者
=complainer.
We bivouacked on the open plain. 我們在開闊的原野上露營。
The problem is quite plain to us. 那問題我們都很明白。
You needn't labor a point that is perfectly plain. 這點(diǎn)很明顯，你用不著講個沒完。
His devotion to music is plain to see. 他對音樂的摯愛是顯而易見的。
Is the coastal plain good for farming? 沿岸平原適宜耕種嗎？
It's plain that he is the criminal. 很明顯，他是罪犯。
n.抱怨者
