be at(sth)

be at(sth)正在做(某事)：When my mother came in，she asked me what I was at.当我的母亲进来时，她问我正在做什么了。

• rapid
• expression vector
• hidradenoma
• clansmanship
• leviable
• ustulation
• perpetual student
• give someone to know
• baby books
• nominal damages
• bowknots
• sea fire
• drag down
• cobblestoned
• limbic system
• pervasions
• inspectoral
• snuffling
• fatwa
• sweet cicely
• garnishing
• public diplomacy
• tanganyikas
• nonliterate culture
• reticulocytoses
• annual meeting
• synesthesias
• faculty theory
• steel square
• Forest City
• Fallopian tubes
• sulfolobuss
• anise oil
• nonholonomic constraint
• Earth Day
• plead no contest
• AYH
• cable up
• nasal septum
• deerskin
• slipper satin
• aluminum silicates
• scale
• dynamic elevation
• thermal conductivity
• artemiss
• compound curve
• in the inmost(或secret)recesses of the heart
• intensional
• broad hatchets
• countersinking
• holloa
• trisodium phosphates
• tier table
• come to someone's ear s
• Amoebida
• diagonal joint
• jeu
• cohobated
• telepathic
• ball and chain
• keep (sb) off sth
• karter
• smart bomb
• vertiginousness
• gemeinschaften
• ARV
• Alabama River
• anterior to
• Pecksniffery
• c'est la vie
• succinctest
• Nashe, Thomas
• orthostatai
• psychoprison
• heeders
• lookit
• put sb through sth
• uropod
• in the nick of time
• soft limit
• Christianizing
• sift wheat from chaff
• a storm of applause
• rundown line
• surtax
• Tarpeian rock
• steel traps
• prepg
• fundamentalities
• Egyptian Mau
• ring true/hollow/false
• snap out of it
• KC-10
• projet
• historicise
• work up to
• epiploon
• musettes
• out of work