Acceleration and velocity are both vectors.加速度和速度都是矢量。the velocity of light光速Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来....
The upper layer of felt should overlap the lower.毛毡的上层应与下层重叠。Tiles overlap each other.屋瓦相互叠盖。The roofing slates were laid to overlap each other.石板屋瓦是相叠着放置的.The needs of patients invariably overlap.病人的需求总有一些是一致的。The overl...
他可不是个会偷懒的人，他是他们最好的工人。He's not a slacker, he's the best worker they've got.教练告诫姑娘们不要偷懒.The coach admonished the girls for being lazy.我不能让你偷懒.I can not suffer you to be idle....