N-PLURAL
困难;艰苦;严苛;严峻
If you refer to the rigours of an activity or job, you mean the difficult, demanding, or unpleasant things that are associated with it.
例句
He found the rigours of the tour too demanding.
他发现这次旅行非常艰苦。
...the rigours of childbirth.
分娩的艰辛