• 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。

    帮助多文化的家庭 - SpeakingMax英语口语达人

  • 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

    耶鲁公开课 - 基础物理课程节选

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