1. entertainment n. 娱乐；招待，款待
There are few entertainments in that town.
那个镇上几乎没有娱乐设施。
This hotel is famous for its entertainment.
这家旅馆以殷勤待客著称。
2. enthusiasm n. 热情，热心
She seemed lacking in enthusiasm when we were talking about that film.
我们谈论那部电影时,她看来好像没多大热情。
His enthusiasm made everyone else interested.
他的热心激发了大家的兴致。
He pretended not to observe our entry.
他装作没有看见我们进来。
You can leave your umbrella in the entry.
雨伞可放在入口处。
4. environment n. 环境
She is not used to the new environment.
她对新环境不习惯。
The episode of this film sounds good.
这部电影的插曲很好听。
Thats an episode in my life Id rather forget!
那是我一生中宁愿忘记的经历！
6. equation n. 方程（式）