外科: surgery (branch of medicine)...
签署: to sign (an agreement)...
教条: doctrine, dogma, creed, dogmatic...
毛: hair, pore, fur...
加紧: to intensify, to speed up, to step up...
下海: to go out to sea, to enter the sea (to swim etc), to take the plunge (e.g. leave a secure job, or enter prostitution etc)...
转悠: to roll, to wander around, to appear repeatedly...
木匠: carpenter...
务实: pragmatic, dealing with concrete issues...
油腻: grease, greasy food, oily, rich (of food), fatty, greasy and dirty, a slippery character...