| 释义 |
motion in a straight line
基本例句
直线运动
The tendency of a body in motion to continue in motion along a straight line is known as inertia.运动物体继续作直线运动的倾向叫惯性。
A little known theory of Kepler's held that comets were celestial bodies moving along straight lines.另一个鲜为人们所知的开普勒理论认为，彗星是沿直线运动的天体。 |