Remember, you've got to keep track of the sign of acceleration, so if you're picking up speed towards the ground, a is negative, so it will be g plus a, but a is a negative number.

记住,一定要注意加速度的符号,所以当你加速下降的时候,a 是负的,还是 g 加上 a,但是 a 是负数

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The gravity-defying ride will be the second of its kind in the U.S., with an unrivalled steep negative-G drop.

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The daily on-balance volume (OBV) formed a negative divergence at the recent highs (line g), which was confirmed by the break of support (line h) on October 10.

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Otherwise, negative years in back halves are pretty tame, e.g.

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