1.focus on 致力于；使聚焦于

That's all you want to focus on.
你只需將你的注意力集中于此。

The project also will focus on key secreted pathogenic proteins.
該項目也將集中于主要分泌性致病蛋白質(zhì)。

2.according to 根據(jù)，按照

They both played the game according to the rules...
他們倆都依章行事。

They must take their own decision according to their own legal advice.
他們必須根據(jù)各自律師的意見自行決定。

3.tend to 趨向；偏重

Smaller laptops also tend to have longer battery life.
小巧的電腦也趨向更長的電池持續(xù)時間。

I tend to prefer light colors.
我往往更喜歡淡顏色。

4.account for 導致，引起

How do you account for the company's alarmingly high staff turnover?
你怎么解釋這家公司高得令人憂慮的人員流動率？

He said only 200 of the train's 600 passengers had been accounted for.
他說火車上的600名乘客中僅有200名乘客的信息得已查明。