as smart as a new pin 非常漂亮...pin n.大头针,针,别针,栓,销子...safety locking pin 安全锁销...saddle-pin n.鞍栓...valve pin 真空管脚阀销...wrist pin 肘销,活塞销...valve inside plunger pin 阀针...hair-pin conductor 发夹型导体...alignment pin 调整梢...split pin 开口销...gudgeon pin 活塞销...bounding pin 弹跳杆...thumb pin 图钉...adjusting pin 调整销...leader pin bushing 导销衬套...knock-out pin 顶出销...hammer pin 摆锤销轴...neat as a new pin 十分整洁的...king pin 大王销...kneader pin 搅动销...push pin 推针;推销...
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