dance on a rope 被绞死
tail-up on a rope 拉紧装置
Soap On A Rope 下一首
swing on a rope 在绳子上荡秋千
danced on a rope 被绞死
on a tight rope 关系紧张
以上来源于: WordNet
They lowered him down the cliff on a rope.
他们用绳索把他放下悬崖。
The children were swinging on a rope.
孩子们抓着绳子荡来荡去。
The head swings like a stone on a rope.
脑袋像由绳子吊着的一块石头般不断地晃着。
"Hats,scarves, we've got playing cards, soap on a rope,things like that."
VOA: standard.2010.07.10
So, a massless body cannot have a net force on it, because the acceleration of the rope cannot be infinite.
所以没有质量的物体不会受到力,因为绳子的加速度不可能是无穷大
So, massless bodies will always have, like a massless rope, equal and opposite forces on the two ends.
所以无质量的物体,比如这个绳子,两边所受的力永远都相等
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