难产的英文：
difficult labor
dystocia
still birth

参考例句：

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.

difficult是什么意思：
adj. 困难的；执拗的；不易相处的

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。

labor是什么意思：
n. 劳动；工作；劳工；英国工党
v. 劳动；费力地前进

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。

dystocia是什么意思：
n. 难产