对于Jack说来轮胎瘪了显然不是大问题，因为他有汽车电话，而且车箱里还放着一套工具。所以他要Jill别担心，换个轮胎一点儿都不费劲儿。他只要取出车后面的千斤顶和铁扳手，没一会儿工夫就会把轮胎换好，让Jill开车上路。 这里的no sweat显然表示这是轻而易举、不费吹灰之力的事儿。

1：Don’t worry about the flat tire. No sweat! I have a car phone and a set of tools in back. Just let me get my jack and tire iron, and I’ll change the tire and have you back on the road in no time!

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