My wife worried about my health. She said I was getting old and that this work must be difficult on me physically.

“我女儿抱怨说这是一份不怎么光彩的工作”，德田重男回忆说，“而我妻子则担心我的身体，她说以我这垂老之躯，这活儿肯定不轻松。”

youdao

On average, students have to spend 3 hours finishing homework every day, but if we are stuck by difficult questions, the time will be extended.

学生平均每天要花三个小时来完成作业，但是如果遇到难题，完成作业的时间就得延长。

youdao

Life can be easy or difficult, sometimes it depends on how you look at it.

生活可以容易，也可以困难，有时这取决于你如何看待它。

youdao

I did not want them to be difficult or to get in my hair while I was working on the computer.

VOA: special.2009.05.03

I'm not going to have you work long hours on difficult problems to be submitted and then graded.

我的作业不会让你们花费大量的时间,去钻研很难的问题，然后交上来让我打分。

麻省理工公开课 - 固态化学导论课程节选

And if they're a premade salad then it would be even more difficult because you're not constructing it yourself, so it's hard to uses based on these sort of things.

如果那是预制色拉,就更麻烦了,因为那不是你做的,就很难进行统计

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In any event, if the majority of world opinion remains opposed to military action, it is likely to be difficult on the facts to categorise a French veto as "unreasonable".

BBC: SERVICES

Now, a commitment to interpersonal contact can be difficult to sustain on a global scale.

FORBES: The Social Media Fallacy: Real Leadership Means Face-to-Face, Not Facebook

Joel Greenberg, a partner at Kaye Scholer who specializes in mergers and acquisitions, believes the court ruling would be difficult to overturn on appeal.

FORBES: Market Scan