in advance
 提供,預先,事先
 Ad·vance, n.
 1. The act of advancing or moving forward or upward; progress.
 2. Improvement or progression, physically, mentally, morally, or socially; as, an advance in health, knowledge, or religion; an advance in rank or office.
 3. An addition to the price; rise in price or value; as, an advance on the prime cost of goods.
 4. The first step towards the attainment of a result; approach made to gain favor, to form an acquaintance, to adjust a difference, etc.; an overture; a tender; an offer; -- usually in the plural.
    [He] made the like advances to the dissenters.   --Swift.
 5. A furnishing of something before an equivalent is received (as money or goods), towards a capital or stock, or on loan; payment beforehand; the money or goods thus furnished; money or value supplied beforehand.
    I shall, with pleasure, make the necessary advances.   --Jay.
    The account was made up with intent to show what advances had been made.   --Kent.
 In advance (a) In front; before. (b) Beforehand; before an equivalent is received. (c) In the state of having advanced money on account; as, A is in advance to B a thousand dollars or pounds.
 in advance
      adj : situated ahead or going before; "an advance party"; "at that
            time the most advanced outpost was still east of the
            Rockies" [syn: advance(a), advanced(a), in
            advance(p)]
      adv : ahead of time; in anticipation; "when you pay ahead (or in
            advance) you receive a discount"; "We like to plan
            ahead"; "should have made reservations beforehand"
            [syn: ahead, beforehand]