"catch sb off guard"的意思是让“某人措手不及”
更多如下
catch [kætʃ]
vt.
抓住，握住：
He caught my hand and held it tightly.
他抓住我的手，紧紧地握住。
捉住；逮捕；俘获：
They caught those bandits at last.
他们终于捉住了那些强盗。
(用陷阱、圈套等)捕获，套住；缠住：
The fox was caught in the trap.
狐狸在陷阱里被套住。
接住；截住，拦截；挡住：
You should catch the ball with both hands.
你应当用双手接球。
更多结果
以上来源于：《21世纪大英汉词典》
词组短语同近义词同根词词语辨析
catch oneself 发觉自己讲错而突然住嘴
catch up 赶上；把…缠住
catch up with 赶上，追上；逮捕；处罚
catch on 理解，明白；变得流行
catch the train 赶火车
catch fish 抓鱼，捕鱼
catch up on 赶上；得到……消息；弥补
catch fire 着火
catch a glimpse of 瞥见
catch in 被……困住，绊住
catch at 试图抓住；死命抓住；渴望获得
catch hold of 抓住；拥有
catch all 打捞工具；选择全部；设立预设帐号
catch my breath 喘气；随着我的呼吸
catch you later 待会见，回头见
catch phrase 妙句；引人注意的文句
catch the eye 引人注目
catch a bus 赶公共汽车；赶公交车
lock catch 锁扣
catch a ball 接球；接住球
例句
Pelicans try to catch fish with their beaks during lunch time at the Hellabrunn zooin Munich, Germany.
德国慕尼黑海拉布伦动物园。 鹈鹕在午餐时间用长长的喙捕鱼。
The bird's aim is so unerring that even though a protective translucent membraneveils its eyes underwater, it can confidently catch fish to depths of two feet.
在水下，即使有一层保护眼睛的半透明膜遮住视线，翠鸟也会无偏差的抓住目标。它 可以很自信地在两英尺深的水下抓鱼。
How he ingeniously managed to catch fish, how he fixed his solar still, which evaporates seawater to make fresh water, is very interesting.
其中他是如何巧妙地抓鱼，如何固定太阳蒸馏器来提取淡水的事情都非常有趣。
2 .guard [ɡɑ:d]
vt.
保卫，守卫；警卫；保护：
Troops were reported to be guarding the key points there.
据报告，部队正守卫着那儿的要塞。
to guard a camp
守营
监视；看守：
The soldiers guarded the prisoners.
士兵看管着囚犯。
控制，约束；小心防止；使(言词等)谨慎：
Guard your tongue.
当心不要乱说话。
保守(机密等)；遮掩：
Guard the secret with your life: tell it to no one!
用你的生命来严守机密，请不要告诉任何人!
更多结果
以上来源于：《21世纪大英汉词典》
词组短语同近义词同根词词语辨析
guard against 防止；提防
on guard 警惕；站岗
mount guard 上岗；执勤；看管
point guard 控球后卫，组织后卫
security guard 保安人员
coast guard 海岸警卫队队员；海岸巡逻队队员
off guard 不提防；不警惕
national guard n. 国民警卫队；后备役军人
guard against theft 防盗
old guard 保守派；保守势力
shooting guard 得分后卫
on guard against 提防
safe guard 安全设备，安全措施；安全护板；护轨
prison guard 监狱看守
keep guard 站岗
guard a pass 把关
guard dog 看门狗，警卫狗
rear guard 后卫部队；殿后
guard of honor n. 仪仗队
guard rail 防护轨
例句
The Chicago Bull bought a new guard.
芝加哥公牛队新雇了一名后卫。
The criminal has been sent to the county seat under guard.
这个罪犯已经解到县里去了。
The two stone lions, of grotesque shape, guard the entrance.
两只形态奇异的石狮子守卫着入口处。