螺栓: bolt; screw bolt; threaded bolt 短语和例子连接螺栓 binder bolt; connecting bolt; 地脚螺栓 foundation bolt; 螺栓保险 bolt-lock; 螺栓柄 grip of bolt
卸: 动词1.(从运输工具上搬下来) remove cargo or freight; unload; discharge; unlade 短语和例子卸下船上的货物 discharge a ship of her cargo; unship a cargo2.(把加在人或牲口身上的东西取下) lay down; take away 短语和例子卸担子 lay down a burd
