知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 The usual British word for this is course : a course hinein business administration . Class can also mean one of the periods in the school day when a group of students are taught: What time is your next class? British speakers also use lesson for https://tysontqkcv.fare-blog.com/33913812/das-5-sekunden-trick-für-trance