sit in for somebody phrasal verbphr v INSTEADto do a job, go to a meeting etc instead of the person who usually does it 代理〔某人的〕工作;代表〔某人〕出席会议 This is Alan James sitting in for Suzy Williams on the mid-morning show. 我是艾伦·詹姆斯,代替苏济·威廉斯主持今天上午的节目。
sit in for • Michael Morris will sit in for Betty Boothroyd ... the first woman Speaker, who was elected last week.• Daughter Catharine sat in for him while faculty and students wrangled through eighteen nights.
→ sit in for somebody at sit(PHRASAL VERB)