We had better take advantage of the warmer weather by going for a walk this afternoon.为什么会有个by?
问题描述：
We had better take advantage of the warmer weather by going for a walk this afternoon.为什么会有个by?
答
by表示通过（某种方式）,以.
翻译：今天下午,我们用散步的方式来利用暖和的天气.