The apple fell from the tree due to gravity.
苹果因为重力从树上掉了下来。
Scientists study gravity to understand planetary motions.
科学家研究重力以了解行星运动。
Astronauts experience less gravity in space.
宇航员在太空中感受到较少的重力。
The moon's gravity affects Earth's tides.
月球的重力影响地球的潮汐。
Without gravity, everything would float away.
没有重力，一切都会漂浮。
They conducted experiments to measure gravity.
他们进行了实验来测量重力。
The force of gravity keeps us grounded.
重力的作用使我们保持在地面。
Isaac Newton formulated the law of gravity.
艾萨克·牛顿制定了重力定律。
Birds fly by counteracting gravity with lift.
鸟类通过升力对抗重力来飞行。
Engineers design structures to withstand gravity.
工程师设计建筑以承受重力。
gravity of the situation 形势的严重性
center of gravity 重心
gravity waves 重力波
gravity field 重力场
zero gravity 失重
specific gravity 比重
gravity pull 重力牵引
