be on the lookout（或keep a lookout for）

be on the lookout（或keep a lookout for） be alert to (danger or trouble) 警觉地注意（危险, 困难）： he told them to be on the lookout for dangerous gas. 他告诉他们小心有害气体。 ■ keep searching for (something that is wanted) 一直寻找： we kept a sharp lookout for animals and saw several waterbuck. 我们仔仔细细地寻找动物, 见到几只非洲大羚羊。

• manly
• with （或in 或having） regard to
• office copy
• zirconium carbide
• Spastic Diplegias
• Saktism
• dill
• ghat
• Ixion
• frame house
• gentlemanly
• sit like a jellyfish
• isoclinic lines
• reflexness
• pyrexic
• metal lather
• script
• blood-brain barrier
• be at sb’s command
• souchong
• onomastics
• APBs
• diaphanously
• pantophagous
• pompanos
• engrailments
• capsizal
• tribunician
• nomenifer
• characterful
• dip your headlights / lights
• miss stays
• derring-does
• unexpressiveness
• tourer
• dream theory
• gliadin
• antipruritic
• albumenized
• internationality
• creep limit
• redolently
• programme element
• Tibetan terrier
• B -cell growth and differentiation factors
• air inlet
• dense binary code
• preoptions
• mercury switches
• teasier
• weasons
• quadrupedal
• panturanianism
• sparrowish
• be loath to do sth
• solid-state thyratron
• Frankfort on the Main
• polycide
• monumentalizes
• three-valued
• glyceric
• mythicisers
• pipe wrenches
• dangle about
• achingly
• periwigged
• monodromy theorem
• bring someone to his milk
• take a noble (或active) part
• pinnatiped
• aecial
• beknaves
• kok-sagyz
• king snake
• hyal-
• beflagged
• gas bearings
• echo checking
• veeringly
• sea-floor spreading
• be sure about
• transgression
• phyletic evolution
• spirogyras
• flageolets
• gargoyled
• vapouringly
• maximum permissible dose
• amphithalamus
• Passive Immunizations
• bouquetin
• Tas.
• clarkias
• acronaming
• exposest
• forestial
• drop-in center
• Aschersonia
• Dose Fractionations
• foundation stone