be hard at

be hard at努力从事;努力做：We are in duty bound to be hard at our work no matter what work we are engaged in.无论我们做什么工作，我们都有责任把它努力做好。

• just like mother used to make it
• lay down one's life
• playway
• Caen
• video display terminal
• la platas
• piebalds
• Frobenius reciprocity theorem
• electrophoreses
• demand
• thugs
• let in for
• furiousness
• blankety-blank-blank
• warfarins
• will he , nill he
• phosphate glass
• Gaiaist
• scrub sth↔off
• sitter
• anorexigenic
• have a word with
• circumcision
• European letter telegram
• subculture
• sidebar
• motorcoaches
• Anterograde Amnesias
• conductivity water
• string-pullers
• out of the reach
• dinning
• disculpations
• Antony
• breast up to
• exility
• make sure work with something
• horse room
• megalocephalies
• angular momentum operator
• reciprocator
• Corliss, George Henry
• definiteness
• fall into a passion
• lay one's heart bare
• takeovers
• Punch-and Judy
• break the silence
• slavelike
• arborists
• ousters
• Saint Pierre and Miquelon
• counterprogram
• free tree
• fly-strike
• pull every string
• look (like) oneself(或 one's usual self)
• leak in
• be out of your mind with worry, etc.
• on sb's knee
• bulk photoconductor
• basilect
• modally
• moth-eatens
• call into being
• introflexion
• a dog's dinner
• amniographies
• being that
• cock and bull story
• untowardnesses
• .pbl
• sublessors
• barn swallows
• go a very little way to
• margs
• cognitive dissonance
• LLM
• Agassiz, Alexander
• oceanographic model
• octyl carbinol
• lupine
• Malikite
• staghound
• palm something off
• leastways
• Rwanda
• debutant
• entases
• parcel bombs
• batracho-
• sachemic
• short waist
• squaw huckleberries
• Protoceratidae
• -phonia
• adrenergic blocker
• blood typing
• piqure
• engrafter