· be at loose ends心里没有着落
Many old people feel at loose ends after their retirement.
· make both ends meet收支平衡
The newly-wed couple found it hard to make both ends meet.
· be green with envy羡慕极了
Don’t be green with envy. He deserves the prize, since he has spent a whole month on that paper.
· be of the essence绝对不可少,关键的
As for study, diligence is of the essence.
· a poor apology for...蹩脚货,名不副实
That travel agency was first-class, but it offered a poor apology for its service.