词汇	bidder ring
释义	bidder ring 围标
随便看	spring down-turned eye spring drafting spring draw gear spring draw nail Spring dream has no trace spring dress spring dress goods spring drive spring drive dry shaver springdriven spring driven spring-driven spring-driven motor spring drivespring motor spring drivespring motorpipe switch spring driving spring driving gear winch spring drought spring drought/flood spring drum spring dune spring dust cover Spring dust storm spring dynamic deflection spring dynamometer