David: Hold on. What do you mean? In what way should we change, Bill?
大卫：等一下，你的意思是？我们该怎样改进，比尔？
You hold the lower nut with one spanner while you undo the top nut with another one-do you see what I mean?
你用板手固定住下面螺母，同时用另外一把扳手拧开上面螺母，你明白的意思吗？
You hold the lower nut with one spanner while you undo the top nut with another one - do you see what I mean?
你用板手固定住下面螺母，同时用另外一把扳手拧开上面螺母，你明白的意思吗？
David: Hold on. What do you mean?
大卫：等一下，你的意思是？
David: Hold on. What do you mean?
大卫：等一下，你的意思是？
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