同根常考词汇：需掌握
◆semester[si’mest]n.学期
举例：A student will probably attend four or five courses
during each semester.
每个学生一学期可能要修四五门课程。
◆seminar[‘seminɑ]n.研讨会
举例：Professor White’s seminar was cancelled.
怀特教授的讨论会取消了。
