查询词典 entrance guard

guard of honor：仪队; 仪仗队

guard dog 看门狗, 被训练成保护财产不受侵入者干扰的狗 | guard of honor 仪队; 仪仗队 | guard-rail 栏杆

guard ring：保险环

guard rail 护轮轨 | guard ring 保险环 | guard s valve 车长阀

guard ring：护圈

護板 guard plate | 護圈 guard ring | 保護管 guard tube

guard ring tocograph：保护环分娩力描记器

guard relay 防护继电器 | guard ring tocograph 保护环分娩力描记器 | guard ring type capacitor 保护环式电容器

keep guard：守望,警戒

body guard 保镖 | keep guard 守望,警戒 | They kept a close guard over the thieves. 他们对小偷们严加看管.

Army National Guard：(陸軍)

National Guard (國民兵) | Army National Guard (陸軍) | Air Force national Guard (空軍)

off guard：不当班; 不备, 疏忽

keep sb. under close guard 把某人置于严密监视下 | off guard 不当班 不备, 疏忽 | old guard 某一事业(或主张)的老一辈的维护者守旧派, 保守分子

off guard：没有警惕,毫无防备

288.keep guard 站岗,警卫,注意 | 289.off guard 没有警惕,毫无防备 | 290.on guard 保持警惕,站岗,望风

come off guard：[军]离防; 下防

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

be on one's guard：警戒, 提防

stand upon one's guard 警戒, 提防 | be on one's guard 警戒, 提防 | be upon one's guard 警戒, 提防

through train：直通车

three-tier government structure 三层政府架构 | through train 直通车 | tie of votes 票数相等

hemiacetal linkage：半缩醛键联

hemicellulase 半纤维素酶 | hemiacetal linkage 半缩醛键联 | hemi-acetal 半缩醛