offer的三种用法

1、offer sth to sb / offer sb sth 提供(东西或机会)，供应offer your hand 伸出手（以便同别人握手）He offered $4 000 for the car.他出价4 000元买这辆汽车。

2、on offer / under offer可买到，可使用/(房屋或其他建筑物)已有买主出价Prizes worth more than £20 000 are on offer.优胜者奖品总值逾20 000英镑。

3、offer of sth/to do sth主动提议；建议You can't just turn down offers of work like that.人家给你工作，你不能就那样一一谢绝呀。