我想了想，随即找了个小板凳坐了下来，可板凳太小了承重力不足，加上我偏胖，板凳几乎要被压垮。

I wanted to think, and then found a small wooden bench to sit down, and the bench is too small to bearing force is insufficient, plus I chubby, bench almost to be overwhelmed.

youdao

在这些力中，垂直力受到忽视，但因为它们与地球的重力相比微不足道，所以这不是一个十分严重的问题。

Among these forces is the neglect of vertical forces, which is not too serious because they are quite small compared with the earth's gravitational attraction.

youdao

绳子会说,“啊哈，这家伙需要我来帮忙拉了“,因为此时只靠重力加速度,不足以提供向心加速度了，需要额外的补充

The string will say "Aha! I'm going to pull now on this person "because the gravitational acceleration alone is not enough-- I need some extra pull."

youdao