She had a pretty tough childhood…是什么意思？

She had a pretty tough childhood…

她的童年非常不幸。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

pretty

adj. 漂亮的，机灵的，聪明的；adv. 相当，颇；n. 漂亮的人（或东西）；

例句
The North Korean economy was pretty strong in its time, and was ahead until maybe 1970...
朝鲜的经济曾经相当强大，大约在1970年之前都是超前发展。

tough

adj. 坚强的，坚韧的，不屈不挠的，艰苦的，困难的，难办的，牢固的，强壮的，粗暴的；n. 粗暴的人，暴徒，恶棍；vt. <口>忍耐，忍受（常与out连用）；adv. 强硬地，顽强地，以强硬的态度；

例句
It was a tough course over a gradual ascent before the big climb of Bluebell Hill.
在爬崎岖的蓝钟山之前有一段很难走的上行缓坡路。