PHRASAL VERB 抽出;排掉;汲出 If a quantity of liquid is drawn off from a larger quantity, it is taken from it, usually by means of a needle or pipe. 抽出;排掉;汲出 [Also VERB n PREPOSITION]
The fluid can be drawn off with a syringe. [beVERB-ed PREP.]
可用注射器将液体汲出。
Doctors drew off a pint of his blood. [VERBPREP. noun]