1.according to 根据
例句:They both played the game according to the rules.
他们俩都依章行事。
2.as well as 以及，以及
例句:There are one-room flats as well as two-room flats.
有一室一套的，也有两室一套的。
3.account for 对…负有责任
例句:How do you account for the company's alarmingly high staff turnover?
你怎么解释这家公司高得令人忧虑的人员流动率？
4.because of 因为
例句:If you tend to overeat because of depression, first take steps to recognize the source of your sadness.
如果你常常因为沮丧而暴饮暴食，首先应该设法找到悲伤的原因。
