我爱凯瑟琳；而她的哥哥需要人侍候，为了她的缘故，我就来伺候他。

I loved Catherine; and her brother requires attendance, which, for her sake, I shall supply.

youdao

我不会仅仅为了你父母的缘故而装出合家欢的假象。

I'm not going to play happy families just for the benefit of your parents.

《牛津词典》

可是为了我的缘故，你们现在非作朋友不可。

Yet, for my sake, you must be friends now.

youdao