放下锤子和螺丝刀，将套筒扳手放到螺母上拧动。
Put down the hammer and screwdriver, and place the socket over the nut and turn.
那么，放下锤子和螺丝刀，将套筒扳手放到螺母上拧动。
So, put down the hammer and screwdriver, and place the socket over the nut and turn.
成功使用套筒扳手的关键在于模式匹配：套筒扳手必须与螺母相匹配。
The key to success with a socket wrench is pattern matching: The socket must match the nut.
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