catch sb off his guard

catch sb off his guard乘某人不备：His little pet dog caught him off his guard，snatched the apple from his hand and ran away.他的小爱犬乘他不备，从他的手中抢了他的苹果，跑走了。

• Seders
• arcwise connected
• position light
• groundwork
• chummies
• crateriform
• maxwell
• beetroot mug
• summon
• tailwind
• esthiomene
• knock a chip off (或 from) someone's shoulder
• manifest itself
• typewrote
• exsanguinate
• Map, Walter
• sharp-tongued
• to a large extent
• erbium oxide
• knock （或 hit）someone for six
• powder flask
• assembled
• usager
• checking account
• high-carbon chromium
• fish or cut bait
• Ezechiel
• solding
• bootstrap exploration
• leakers
• arrestment
• my giddy aunt!
• optimal models
• harvesters
• string band
• Schlesinger, Arthur Mei-er, Jr.
• Bethe-Salpeter equation
• startability
• calydons
• neopalliums
• Biggins
• pair ... off
• move a muscle
• scarlet oak
• amoebulas
• hyperacusis
• moke
• summarizable
• linear operators
• U.S. Recommended Daily Allowances
• heterodoxy
• diploidic
• harden
• Persian Gulf
• police record
• colloquium
• a.v.
• systemisation
• by/in virtue of sth
• hydrospheres
• short-termists
• liposorber
• PCU
• french sudans
• be in a scrape
• thyronines
• unificationists
• one's hands are full
• easest
• nip on ahead
• amicrobic
• farinose
• poxy
• always supposing
• vacuum thermobalance
• jokesters
• press-forge
• under the plough
• rain in
• orthoscopic
• robberies
• prescriber
• isohyet
• Sherman Antitrust Act
• stichomythias
• Albert's stain
• choke collar
• think nothing of it
• Forefathers' Day
• disbelievingly
• crashworthinesses
• achondroplastic
• oxidases
• supercolossally
• get yourself/sb into sth
• trionychidaes
• Rman-Rayleigh ratio
• cantankerously
• buer
• Byblos