| 
                 
                  guard [ɡɑ:d]
 n. 警卫[戒], (监狱)看守者 哨[卫]兵; 警卫; [the Guard ]英国等皇家禁卫军;【航海】护航舰 防护装置; (车的)挡泥板; (枪的)保险 (击剑, 拳击)防护姿式, 防护术 [英](=[美]conductor)列车员; (列车上的)制动手; (足, 篮球的)卫, 后卫 
 【常用短语】
 keep guard  实行警戒 the guard of honour  仪仗队 the advanced [rear] guard  前[后]卫 life guard  救生员 mud guard  挡泥板 
 【习惯用语】.
 be off one's guard 疏忽, 大意, 不提防 不值班  catch sb. off guard 乘某人不备; 使人措手不及  catch sb. off his guard 乘某人不备; 使人措手不及  come off guard 【军】离防; 下防  lower one's guard 丧失警惕 lie upon one's guard 警戒, 提防  turn out the guard 集合警卫人员 [口令]警卫队持枪列队  guard against 提防, 预防 
 【近义词】synonym
 defend [di'fend] vt. 防御, 防守, 保卫(国家等) 以行动, 语言或文字替...辩护或答辩 
 The accused man had a lawyer to defend him.  被告有一律师为他辩护。 
 【背句子记单词】
 The sentry is on guard.  那哨兵在担任警戒。 You'd better guard your tongue. 你最好说话谨慎些。 |