differ different difference exact exactly object objection accumulate accumulation merely mere assumption assume reasonable reason adore adorer regulation regular shortly short pay off cast down object to in favour of(be)bound to(do).使使刻骨铭心刻骨铭心 不时；偶尔不时；偶尔 使复生；使复活使复生；使复活 白费力气；枉费心机白费力气；枉费心机 状况很好状况很好/坏；情况很好坏；情况很好/坏坏 Then came the exciting news that The advantage of cycling to work is that
