vi. 1)抱怨 She complained to me of his rudeness/that he had been rude to her.
2) 投诉，控告 Our neighbor said that if we made any more noise he’d complain (about us) to the police.
He complained to the police of having his house burgled.
It was too wet to go outside, so the children had to be content with playing indoors. 户外太湿，孩子们只好在户内游戏玩耍。
John seems content to sit in front of the television all night.
be content with sth./doing sth.对…满意
be content to do sth. 愿意做…
n. 满足，满意 We can swim in the river to our heart’s content. 我们可以在河里尽情地游泳。
Vt. 是满意，是满足 As there is no cream, we’ll have to content ourselves with black coffee. 既然没有奶油，我们只好喝清咖啡了。
As he had to drive home after party, he contented himself with two glasses of beer.
Vt,.调节，协调 She’s a beautiful dancer, all her movements are perfectly coordinated.
We used computer to coordinate the marketing campaign. 我们用一台电脑来协调推销活动。
n. 坐标 They are the X and Y coordinates on the graph.它们是图表上的X和Y坐标。
Adj. 同等的，并列的 The army, navy and air force are coordinate braches of the armed services.陆、海、空军是三个平行的军种。