swot

v (-tt-) [I, Ipr, Ip, Tn.p] ~ (up) (for/on sth); ~ sth up (Brit infml often derog 口, 常作贬义) study sth very hard, esp in preparation for an exam 刻苦学习某事物（尤指为准备考试）: swotting for her exams （她）为考试而用功 * I'm swotting up my maths/swotting up on my history. 我正在用功温习数学[历史].

switched-on, Switzerland, swivel, swizz, swizzle, swizzle-stick, swollen, swoon, swoop, swoop down on, swop, sword, sword-dance, sword-play, sword-stick, swordfish, swordsman, swordsmanship, swore, sworn, swot (also swotter), swum, swung, sybarite, sybaritic, sycamore, sycophancy, sycophant, sycophantic, sycophantically, Sydney, Sydney Chapman, syllabary, syllabic, syllabically, syllabification, syllabify, syllable, syllabub (also sillabub), syllabus,