office hour 坐班时间consultant 顾问consult sb. about sth./doing sth.与某人商量(做)某事be
consult sb. about sth./doing sth.与某人商量(做)某事
be lost / be all at sea / be in the dark 听不懂
figure out / make sense / catch / follow words 听懂
drop off 放弃
doze off 打瞌睡
associate professor 副教授
lecturer 讲师
punctual / prompt 准时的
be punctual for 准时上课/开会
run over time / late 常拖堂
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