更代

(1)reciprocal transfer of equivalent sums of money (especially the currencies of different countries); "he earns his living from the interchange of currency"

(2)金銭（特に異なる国の通貨）を、同価値の金額に相互に交換すること

(3)the act of putting one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help"

(4)1つの人か物を別の場所に置く行為

(1)he sent Smith in for Jones but the substitution came too late to help

(2)彼はジョーンズの代わりにスミスを送りましたが、ヘルプの代替が来るのが遅すぎました