lesson

n.课业，功课，课程；教训，经验

Lenten, lentil, lento, Leo, leonine, leopard, leopardess, leotard, leper, leprechaun, leprosy, lesbian, lesbianism, lese-majeste (also lese-majesty), lesion, less, lessee, lessen, lessening, lesser, lessor, lest, let, let alone, let down, let go, let go (of), let go of, let in, let loose, let off, let on (about sth/that...) (to sb), let oneself go, let out, let pass, let sb off (with sth), let sb out, let sb through, let sb. in, let sb. into,