adj.旧的,二手的;用过的;间接得来的;(学说等)不是独创的;
例句:
a second-hand bookshop (= for selling second-hand books)
旧书店
Buying a second-hand car can be a risky business.
买二手车可能有风险。
I bought the camera second-hand.
我买的这架照相机是二手货。