dissipate1.V-T/V-IWhensomethingdissipatesorwhenyoudissipateit,itbecomeslessorbecomeslessstronguntilitdisappearsorgoesawaycompletely.驱散;消散[正式]例：Thetensionintheroomhaddissipated.房间里的紧张气氛已经消散了.2.V-TWhensomeonedissipatesmoney,time,oreffort,theywasteitinafoolishway.浪费(金钱、时间、努力等)[正式]例：Heneedssomeonewhocankeephimfromdissipatinghistimeandenergyontoomanydifferentthings.他需要有人来阻止他浪费时间和精力做太多不同的事情.