1. It places a terrible strain on the mother-child bond by saddling the mother with the double burden of playing the role of both mother and father;
    离婚使得母亲既当母亲又当父亲而不堪重负，从而造成母子关系的紧张。

2. When you come from a family of firsts, you never forget the burden and the inspiration of your past.
    来自一个创造"第一"的家庭，你决不会忘记自己的责任，不会忘记家族历史对你的鼓舞。

3. The Lord kept his promise, and lightened the burden of taxes that he laid upon the citizens.
    勋爵未食前言，减轻了他加在市民头上的税负。

4. Life to him seemed hollow, and existence but a burden.
    生命对他来说是空虚的，活在世上不过是一种负担。