There's a hammock they lounge on, a spot to jump rope, a place to play in the sprinkler, and an area to write with sidewalk chalk.
有一个他们休息的吊床,一个跳绳的地方,一个在洒水车里玩耍的地方,还有一个用粉笔写字的地方。
They had to walk across an emergency footbridge, holding onto a rope that served as a rail.
他们不得不抓着当作栏杆用的绳子,走过一架应急人行桥。
An animal was tied to the rope. It was a baby elephant!
绳子上拴着一只动物。它是一头小象!
If your plan is to accelerate a 3 kg mass with an acceleration of 2 meters per second, you better have a rope that can furnish that force and it can take the tension of 6 Newtons.
如果你想用 2 米每秒平方的加速度,去拉一个 3 千克的物体,那么你就需要一根能提供拉力的绳子,并且它能够承受 6 牛的张力
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