leash /liːʃ/●strain at the ˈleash (informal) want to be free from control; want to do sth very much渴望挣脱束缚；急于（做某事）；迫不及待◆Why don’t you let her leave home? Can’t you see she’s straining at the leash?你为什么不让她离开家？你没看出她极力要摆脱束缚吗？◆He’s straining at the leash to leave Britain for somewhere sunnier.他急不可待地想离开英国去一个阳光明媚的地方。NOTE A leash is a long piece of leather, chain or rope used for holding and controlling a dog. * leash 是牵狗用的长皮带、链子或绳子。●keep a tight ˈrein on sb/sth ( keep sb/sth on a tight ˈleash) control sb/sth very carefully; give sb/sth very little freedom对…严加约束；牢牢驾驭◆The company must keep a tight rein on spending.公司必须严格控制支出。◆She keeps her children on a tight leash to make sure they don’t get into trouble.她严加管教自己的孩子，以保证他们不会惹麻烦。OPPgive/allow sb/sth free/full reinNOTE A leash is used to hold and control a dog, and a rein is used to control a horse. * leash 指拴狗用的皮带，rein 则指马的缰绳。