tough: having or causing problems or difficulties 艰苦的;艰难的;棘手的
a tough childhood/match
苦难的童年；艰苦的比赛
It was a tough decision to make.
那是个很难做的决定。
She's been having a tough time of it(= a lot of problems)lately.
她最近的日子一直很难熬。
He faces the toughest test of his leadership so far.
他面临迄今为止对自己的领导工作最严峻的考验。
Misgiving: feelings of doubt or anxiety about what might happen, or about whether or not something is the right thing to do 疑虑;顾虑
I had grave misgivings about making the trip.
对于这次旅行我有过极大的顾虑.
She decided to go despite her misgivings.
尽管疑虑重重,她还是决定去.
I read the letter with a sense of misgiving.
我看了那封信,感到有些怀疑.
