宇宙速度

yǔ zhòu sù dù

释义

escape velocity

在应用里学习 → 按笔顺书写

汉字

宇yǔbuilding, house, room, structure; space, the universe宀于宙zhòuspace, time, space-time宀由速sùprompt, quick, speedy辶束度dùdegree, system; manner; to consider广廿又