And if their speed is zero, they'll maintain that restfulness.
如果他们的速度是零,他们会保持静止。
单词 | restfulnesses |
例句 |
原声例句
可汗学院:物理 And if their speed is zero, they'll maintain that restfulness. 如果他们的速度是零,他们会保持静止。 |
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