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. There was nothing of the strain so frequently found on great occasions.
    在大场合不太经常发现这样的气氛。

3. Teachers protested the program's demands and the strain associated with more intense work.
    教师们对教学计划的过高要求以及高强度工作所带来的压力表示抗议。

4. And sings a melancholy strain;
    还唱着一支忧郁的歌；

5. Such an attempt only aggravates the strain of mental effort.
    这样的尝试只会加重精神劳累。

6. Such an attempt only aggravates the strain of mental effort.
    这样的尝试只会加重精神劳累。

7. Such an attempt only aggravates the strain of mental effort.
    已没有用了。这种愿望只能加剧精神紧张。

8. In a love relationship there are times when I am bored, times when I may feel like giving up, times of real strain, and times I feel I can't move forward.
    爱人之间也会有时感到厌烦，有时想放弃，有时感到压力，有时感到羁绊。