Her grip slackened on Arnold's arm.她紧握着阿诺德的手松开了。At about five o'clock, business slackened off.大约5点钟的时候，生意闲了下来。According to the survey, overall world trade has also slackened.根据这项调查，世界贸易整体上也有所放慢。Her grip slacken...
He would never be improper, he is always the perfect gentleman.他总是举止得体，一直是个完美的绅士。It's improper to drop in on him so casually.这样冒冒失失去找他可不好.What an improper suggestion!多么不体面的建议!...