bounds 是 bound 的第三人称单数、复数boundKK [baʊnd] /baʊnd/发音形容词1开往、前往后接 forThis train is bound for the coast and leaves at noon.这班列车开往海岸,中午发车。2一定、必然后接 toYou are bound to feel nervous before such an important interview.面对这么重要的面试,你一定会紧张。3受约束的、有义务的常用被动All employees are bound by the terms of their contract.所有员工都受合约条款的约束。4被绑住的、被捆住的The guard was found bound and gagged in the storeroom.保安被发现遭绑住并塞住嘴,关在储物间里。5装订的、精装的The library keeps old newspapers in large bound volumes.图书馆把旧报纸装订成大册保存。动词1跳跃、跃进、蹦跳The dog bounded across the field to greet us.那只狗蹦跳著穿过草地来迎接我们。2接壤、形成边界常用被动The province is bounded to the north by a mountain range.该省北面以一条山脉为界。名词1界限、范围常用复数Her curiosity about the natural world knows no bounds.她对自然世界的好奇心毫无止境。2跳跃、弹跳He cleared the low fence in a single bound.他一跃就越过了那道矮栏。片语1密切相关、紧密相连Her mood is closely bound up with the weather.她的心情和天气密切相关。2飞跃、突飞猛进His Chinese has improved by leaps and bounds this year.他的中文今年进步得突飞猛进。用这个字练口说→相关片语out of boundsleaps and bounds