1. The first thing I saw when I entered the art gallery was a notice which said: ´Do not touch the exhibits. Some of them are dangerous!´
    走进展厅首先看到的是一张告示，上面写着"切勿触摸展品，某些展品有危险！"

2. "All nationalities, colors, shapes and sizes, a gallery of human faces," I whispered.
    "他们各种国籍、各种肤色都有，体形、个子大小也都不同，简直就是一个人种大聚会，"我低声说。

3. Four tickets for the gallery, please.
    请给我四张顶层楼座的票.