那是一次难产。
The CSeries has had a long and difficult birth, but should enter service in 2014.
系列飞机的诞生经历了漫长和艰难的过程,但是,它将在2014年投入使用。
The decision to search for birth parents is a difficult one to make.
作出寻找亲生父母的决定是困难的。
My mother gave birth to me with exceptionally difficult labor.
我的母亲生下了我,特别难产。
My mother gave birth to me with exceptionally difficult labor.
我的母亲生下了我,特别难产。
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