81.The reverse is also true：反之亦然

　　82.Tie up with/busy with

　　83.Tired of/get bored of

　　84.Under the weather：身体不舒服

　　85.Well-off/rich people

　　86.White elephant：无价值的东西，废物

　　87.White lie：善意的谎言

　　88.You bet ：当然