in sb’s province

in sb’s province在某人学识范围之内;为某人力所能及：Mechanics is the technician’s line，electronics is not in his province.机械学是那个技术人员的本行，电子学不在他的学识范围以内。

• coal-faces
• have kittens
• have a soft place in one’s heart for
• common as the highway
• calories
• round sth ↔ down
• Air surveillance.
• pop someone's cherry
• a fly in the ointment
• automatic train control
• in the secret recesses of one’s heart
• agits
• want out
• give sb the (old) heave-ho
• in a clap
• complete bipartite graph
• back calculation
• of an evening（或morning etc.）
• bobby sox
• be in a dilemma
• appleton layers
• dangerous ground / territory
• savour of sth
• acarologists
• amylums
• a long price
• baseboards
• boring clams
• bug-juice
• ap.
• Buddhahood
• clean floating
• common years
• corridas
• and then some
• be accurate in
• go over sb's head
• with a view to (doing) sth
• the intelligentsia
• abdominal region
• aux.
• near at hand
• bhangi
• certs
• aperiodically
• antiparasitic agents
• no soap
• bugeyes
• attunest
• like a dose of salts
• C'est-a-dire
• centre of population / urban centre
• be hard pushed for time
• anthesis
• take sth on trust
• Bakanae disease
• apurpose
• color-luminosity diagram
• be thin-skinned（或thick-skinned）
• bulldogging
• bowie
• from the teeth outwards/forwards
• live at hack and manger
• atomic spectrums
• combination drug
• have/get the run of
• color balance
• biomorphs
• adenylyl
• blood brotherhoods
• bump into
• compressed yeast
• hit out at sb / sth
• companion cell(s)
• air engineer
• bifurcating
• coxcombries
• a crack hand at doing something
• cleistogamously
• coronule
• agency agreements
• crambo
• baconians
• absolute temperatures
• coelentera
• all standing
• jam out
• convective-cloud-height diagram
• carnivalesque
• carminic acid
• behavest
• rip someone off
• punch the (time) clock
• bobby-dazzler
• at/from close quarters
• Chinese tumbler
• wake up
• dream on
• checking
• ceramic tube