1. 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.

draw off

    e.g. The fluid can be drawn off with a syringe...
           可用注射器将液体汲出。
    e.g. Doctors drew off a pint of his blood.
           医生从他身上抽了一品脱的血。

1. remove by drawing or pulling

    e.g. She placed the tray down and drew off the cloth
           draw away the cloth that is covering the cheese

    Synonym: draw awaypull off

2. remove (a commodity) from (a supply source)

    e.g. She drew $2,000 from the account
           The doctors drew medical supplies from the hospital''s emergency bank

    Synonym: withdrawdrawtake out