at the crack of dawn

at the crack of ˈdawn(informal)very early in the morning黎明；破晓；清晨

• spirographs
• jacking
• breachy
• kick someone when they are down
• ebonising
• allophonic
• epiphytically
• monobath
• top rounds
• badians
• Delmontian
• misled
• keep quiet （或keep someone quiet）
• serve no purpose
• perspiration
• steno-
• intimisms
• Kochab
• sensationalizations
• Przewalski's horse
• oedemata
• Tom around
• D.P.H
• amphidiploidy
• nimbies
• plagiostomes
• at one's wits' end
• fall for
• regrowing
• reckonings
• mute as a mouse
• craniometrical
• slough ice
• machine manager
• pull ... punches
• weak-headedly
• killer cells
• you see
• just in case
• seediest
• orchard grass
• low-angle thrust
• variable region
• curate
• get into its stride
• plus angle
• pneumogastrics
• intrinsic tracer
• Beaux-Arts
• Gheber, Ghebre
• whitening stone
• letterpress paper
• East Sussex
• machine operator
• aculeuss
• Sudeten
• lienteries
• nose glasses
• teleflash
• on dole
• butser
• not come to anything
• ndas
• intelligent sales
• white-market
• meprobamate
• erythrocytes
• sweet FA
• concur
• contrastive stress
• citronellol
• semisecrecy
• cul-de-sac
• dibranchias
• Aurelius Marcus (Marcus Aurelius Antoninus)
• Patna
• project sth onto sb
• central parks
• torpedo warhead extension
• grow too big for one's trousers
• sinografin
• inhibitable
• abeyances
• whewellite
• discovery procedure
• colophon
• wistfully
• coeno-
• drug-resistant
• quantity-mark
• pinseal
• exit interview
• portocaval
• sterilisations
• punctuated equillibrium
• infrabranchial
• bradypnea
• frenula
• steerage
• bisymmetrical