study

vt.学习；研究；细看 vi.读书 n.学习；研究

stubborn, stubbornly, stubbornness, stubby, stucco, stuccoed, stuck, stuck-up, stud, stud-book, student, student sociologist, student-body, studied, studio, studio couch, studio flat, studious, studiously, studiousness, stuff, stuff up, stuff with, stuffed bird, stuffily, stuffiness, stuffing, stuffy, stultification, stultify, stumble, stumbling-block, stump, stumpiness, stumpy, stun, stung, stunk, stunned, stunner,