红包：词汇练习
- Use at least four words below to describe a person or something he/she did (a young, ambitious person, a famous person, a friend)
了然于胸，铭刻在心，品学兼优，血气方刚，理直气壮
- Use at least four words below to describe a dangerous event due to carelessness. The event has a good ending and the people involved became famous.
心不在焉，有惊无险，化险为夷，名声鹤起，器重
- Use at least four words below to describe an unfortunate event didn’t have to happen.
无精打采，愁眉不展，纯属多此一举，弄巧成拙，适得其反
- You just began working at a北京大学房产管理处，and you couldn’t believe the injustices you saw in housing distribution. You went to talk to the director. Write a passage of advice the director has given you using at least four words below.
红包， 天外来客，不食人间烟火，靠山吃山靠水吃水，游戏规则