关于虎的英语俚语成语也可以.

horse horse tiger tiger马马虎虎
He who rides a tiger is afraid to dismount.
Sometimes it is more dangerous to stop doing a dangerous thing than it is to continue doing it.
例句：
A:You shouldn't take out another loan.You're already too far in debt.
B:If I don't take out a loan,I can't make the payments on the loans I already have.You know how it is—she who rides a tiger is afraid to dismount.
a paper tiger
a country or organization that seems powerful but is not
例句：Will the United Nations be able to make any difference,or is it just a paper tiger?