1. The hard work was worthwhile because I passed the exam.
    我考试通过了，所以刻苦努力还是值得的。

2. The process for public school parents is still being worked out, with a lot more difficulty because it is difficult to convince parents that it is worthwhile for them to participate.
    公立学校学生家长的活动计划仍在制定之中。这项工作的困难要大得多，因为很难使家长相信自身的参与很有价值。

3. If I feel that I'm complete and worthwhile in myself, then I'm able to give to you out of my fullness.
    如果认为自己是完满的、出色的，那么我就能以自己的充实为所爱之人增光。