you know, like, paying bills and setting up cable, and you know, talking to doctors.

比如，支付账单，开通网络，还有去找医生看病。

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You can see that if a was equal to g, your downward acceleration is that of gravity, namely the cable has snapped in the elevator, Then you don't feel any weight.

你会发现如果 a 等于 g,你下降的加速度就是重力加速度,也就是电梯的绳索断了,那时你会完全失重

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