他用千斤顶顶起汽车，然后更换后胎。
在充气前，通常应该用千斤顶顶起汽车，使内胎能够均匀地沿着轮胎的每一处扩充起来。
Always jack up the car before inflating the tire so that the tube can distribute itself around the tire evenly.
在充气前，通常应该用千斤顶顶起汽车，使内胎能够均匀地沿着轮胎的每一处扩充起来。
Always jack up the car before inflating the tire so that the tube can distribute itself around the tire evenly.
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