have a good command of

have a good command of精通;能自由运用：The chief engineer has a good command of several subjects，especially electronics.该总工程师精通好几门学科，特别是精通电子学。

• paraquats
• perhydrogenate
• underway
• nogging
• bladded
• by virtue of
• prostrate stem
• date from…
• have a night on the tiles
• give someone the needle
• hypersteatosis
• the ultimate in sth
• churchmans
• Your obedient servant
• wayzgooses
• hydrostaticss
• expressures
• diglossias
• yellow
• balance out
• Acidaminococcus
• Ibsenite
• come to naught
• discover the hard way
• seared
• pen juice
• standout
• tectosphere
• dynamic model
• reenforce
• natural law function generator
• exceptionally
• benchmen
• trench foot
• propagated error
• Jekyll
• kenos
• purdahs
• u. s.
• husb.
• cresyls
• jog someone's memory
• laser pointers
• BTOS
• mass of electron
• wait on someone hand and foot
• have nothing on
• macroeconomics
• in concert with sb/sth
• Laves phase
• fetching
• ride rusty on someone
• giantisms
• radio hole
• blizzardly
• selective cracking
• seedbeds
• extrajudicial
• tedding
• sea ravens
• Sienna
• RANGING-POLES
• Agatha
• procarbazine
• squeakies
• nigeran
• weeknights
• soakage
• lawn chairs
• .ir
• corrodent
• according to the papers
• relative pronouns
• fuck something up（或fuck up）
• impact grinding
• foisons
• burn oneself out
• impostumation
• bammies
• job-hopped
• pick up speed / steam
• advanced technology industry
• run-on sentences
• vinyl acetate resin
• haemodynamic
• World Cup
• canning
• tensest
• melburnians
• rule over
• -ology
• international radio silence
• dialogism
• loose smuts
• Rheiformes
• Sfc
• town cars
• skuas
• theory Z
• necropolises