1. benefit by [from] 受益于。如：

The plants benefited from the rain. 植物得益于這場雨。

We benefit from daily exercises. 我們得益于每天做操。

We benefited greatly by this frank talk. 這次坦率的談話使我們獲益匪淺。

People who stole did not benefit from [by]ill-gotten gains. 竊賊們并未從不義之財中得到好處。

Will the AIDS patients benefit from [by] the new drug? 這種藥對艾滋病人有效嗎?

We are sure to benefit from the new timetable. 我們肯定會得益于新的作息時間表。

He evidently benefited little from our advice. 很明顯，他沒有從我們的勸告中得到多少好處。

2. benefit sb (sth) 對某人或某物有益，使某人或某物受益。如：

The sea air will benefit you. 海邊的空氣對你有益。

The reign of a wise ruler benefits his country. 賢明統治者的統治有益于他的國家。

What he said benefited all the students. 他說的話使所有的學生受了益。

He has devoted his whole life to benefiting mankind. 他把自己的一生獻給造福人類。

His work didn't benefit him; he got no money for it. 他的工作沒使他受益，因為他分文未得。