v.减弱；减少；掉落；睡着；让...下车；把…留下
Interest in the book began to drop off. 人们对这本书的兴趣开始减退了。
Sales dropped off in the fourth quarter. 销售量在第四个季度减少了
Business dropped off sharply during the recession. 在经济衰退期间，生意大大减少了。
My top button has dropped off and I can't find it. 我最上面的那颗钮扣掉了，找不到。
He closed his eyes, and soon dropped off. 他闭上眼睛，很快就睡着了。
Will you drop me off at the next turning? 让我在下一个拐弯处下车，好吗?
