verb 下载 🔗分享 润滑,使润滑。 To make slippery or smooth (normally to minimize friction) by applying a lubricant. Examples : "The oil lubricates the bicycle chain, making it easier to pedal. " 润滑油润滑了自行车链条,让骑车变得更容易。 technical machine physics 与AI对话词汇游戏阅读练习