cost an arm and a leg
I saw a beautiful coat but it cost an arm and a leg.
我看中一個很漂亮的大衣,但是太貴了!
Tighten my belt
To cut down on spending because there is less income than before
由于收入減少,所以開支也相應減少。
in the balance
The outcome of football match is hang in the balance.
足球比賽的結果還懸而未決。
in the bag
The election is in the bag unless the voters find out about my past.
如果我的黑歷史沒被投票的人發現,那選舉這事兒,就是穩操勝卷了。
Keep us cool
He kept his cool even though it was clear that he was being unfairly treated.
即使受到不公平的待遇,他還是保持自己清醒的頭腦,保持淡定的心態。