gravity

Gravity is the fundamental force that governs the motion of planets, stars, and galaxies on cosmic scales.引力是支配宇宙尺度上行星、恒星和星系运动的基本力。

The gravity of the environmental crisis demands urgent and coordinated action at both national and international levels.环境危机的严重性要求国家和国际层面采取紧急且协调一致的行动。