当速度总总为正值或总为负值的翻译：When the total speed always positive or always negative 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

When the total speed always positive or always negative

When the speed numerous is just when or always is a negative value

When speed overall total for positive or negative value for total

When the total speed always positive or always negative