seminar

n.研究小组，研讨会，(大学的)研究班

selves, semantic, semantics, semaphore, semblance, semen, semester, semi, semi-, semi-conscious, semi-detached, semi-skilled, semibreve, semicircle, semicircular, semicolon, semiconductor, semifinal, semifinalist, seminal, seminarist, seminary, semiotics, semiprecious, semiquaver, Semite, Semitic, semitone, semitropical, semivowel, semolina, sempstress, SEN, senate, senator, senatorial, send, send away for, send for, send for sb.,