三克油的英文是 "three-second oil"，来源是指它的润滑作用可以持续三秒。例句：

"I always keep a bottle of three-second oil in my toolbox for lubricating moving parts on my bike."

"我总是把一瓶三克油放在工具箱里，用来润滑我自行车上的活动部件。"

"Three-second oil is a handy product to have around the house for fixing squeaky doors and loose hinges."

"三克油是一种很方便的家用产品，可以用来修理吱吱作响的门和松动的门铰。"

"My grandfather always swore by three-second oil for keeping his old car running smoothly."

"我的爷爷一直都很信任三克油，用它来保持他那辆老汽车的顺畅运行。"