labour at/over

labour at/overmake a lot of effort about 努力 * Don't labour at your writing; try to make it easy and natural. 写文章不要过分雕琢，要力图使其易懂自然。

• attic tank
• Dostoevsky, Fyodor Mikhailovich
• employers
• currying
• saliva ejector
• cut the throat of
• regnants
• electrochemical power generation
• Parnell, Charles Stewart
• Illano
• solves
• double-dome
• elutriators
• after
• nemathelminths
• burst with impatience
• Cather, Willa
• Boolean rings
• trade in sth for
• dinnerless
• limbless
• secondary nondisjunction
• green with envy
• let yourself go
• breathinesses
• palsies
• hang up your hat / football boots / briefcase etc
• Dember effect
• be in hospital
• screw coupling
• projection thermography
• victorianisms
• Hirundinidae
• Adie
• somethingness
• electrophobia
• toss the ball to into someone's court
• trunk room
• be a devil to eat
• condenser bushing
• unequivocally
• coal miners
• by（或with）your leave
• wallas
• uncivilities
• biggity
• in the wings
• reflags
• amylolytic
• milliohm
• rattoner
• eightball
• knock sb off his pins
• boulderings
• costotome
• Edirne
• i.sl
• preservationism
• Kansan
• off one's chump
• (as) slim as a reed
• whininess
• featherboning
• the business in hand
• eruptivity
• lay something on the table
• the milk in the cocoa-nut (或 coconut)
• take something with a pinch of salt
• brailles
• louses
• cocklofts
• the inside
• thunder egg
• keep nix
• lymphogram
• prudentially
• zero-level address
• suction cup
• deu-teration
• epipaleolithics
• moodyies
• kinematic boundary condition
• micropublisher
• hospitalism
• shut in the land
• the reverse side of the medal
• RM
• advocaats
• submits
• steer
• make sb's skin crawl
• Stow
• Kr
• base salary
• cañon
• magmatic water
• transnature
• machicolations
• thalassophile element
• kiss (sb's) ass