Hard-sphere collision theory
[机] 硬球碰撞理论
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
sphere
[sfɪr]
n. 球（体）;（兴趣或活动的）范围;势力范围;天体，如行星或恒星;
vt. 形成球体;包围，围绕;置于球面内部;
spher(ball)+e(名词后缀)→球；球体；天体；范围；地位
🗣️ 情景例句
Why are you leaving your present job?
你为什么要放弃目前的工作？
Excuse me I couldn't help you.
对不起我不能帮助你。
They have been told that rescue operations are progressing smoothly.
他们一直被告知营救工作进行得非常顺利。