难产的英文：
difficult labor
dystocia
still birth

His journal is only literature in embryo, his finished work stillborn
他的日记只是文学的胚胎，他成熟的作品难产了。

The mother had a difficult delivery.
那位母亲难产。

It was a difficult birthshe had to have a Caesarean.
她因为难产,要做剖腹产术.

The exercise is that difficult!
练习题那么难！

You must admit the task to be difficult [ that the task is difficult ].
你应当承认这项任务是艰巨的。

You must admit the task to be difficult [that the task is difficult].
你必须承认这项任务是困难的。

It is a scientific labor.
这是一项艰巨的科学工作。

He is satisfied with your labors.
他对你干的活儿很满意。

Genius is nothing But labor and diligence.
天才不过是勤奋而已。