复数： doorknobs

But as I tried to make a smooth and dignified exit , the doorknob came off in my hand .

但当我正准备潇洒而有风度地离开时，门把手居然掉下来了，被我抓在了手上。

Like the invention of the wheel or the story of the doorknob the password 's creation is shrouded in the mists of history .

正如轮子的发明以及门把手的故事一样，密码的创造也为历史的迷雾所掩盖。

Those unexpected little shocks we get when we touch a doorknob or some other metallic object , the balloons that stick to the wall after being rubbed in the head , or hair itself standing straight when it comes close , all are produced by static electricity .

我们接触到门把手或其他金属物体时身上感到的那些不期而至的小电击，与头发摩擦后粘在墙上的气球，或是静电在附近时竖起的发丝，这些都是因静电产生的。

Of course when jefferson used the word " inventor " he had in mind a farmer or a small manufacturer who in the course of harvesting a crop or making a doorknob would discover a shortcut or devise a new tool that would make the job easier or the product better .

当然，当杰弗逊使用“发明家”这个词时，他头脑中也许是一位农民为收获庄稼或或小手工业者在做门把手时发现一个快捷方式或制造新的工具使工作更轻松或产品质量更好。