英语翻译work is done because tiny forces are making the particle

英语翻译
work is done because tiny forces are making the particles of the brake materials move faster .另外,work done 一词的意思是什么、.我翻译出来老是觉得很别扭.
[⊙﹏⊙b汗]我的翻译是做功是因为微小的力使刹车材料移动得更快。work done是做功的意思。可是我觉得很别扭。