lesson
英 [ˈlesn] 美 [ˈlɛsən]
n. 教训,训诫; 功课; 课程,一堂课; [宗]日课
vt. 教训,训斥; 教课; 向…授课;
复数: lessons
例句
1.He learned this lesson the hard way from his own personal experience.
吃一堑长一智,他这个教训来之不易——是从他自己的亲身经历中得来的。
2.The lesson from all of this is perhaps a broader one.
从所有这一切中得出的教训可能具有更广泛的意义。
3.It was the quickest swimming lesson I'd ever witnessed.
这是我所见过的最速成的游泳课。