1. The referee ruled that the player must leave the field.
    裁判决定那个运员必须下场。

2. A long time ago the tiny country of Switzerland was ruled by Austria.
    很久以前,瑞士这个小国被奥地利统治.

3. A long time ago the tiny country of Switzerland was ruled by Austria.
    很久以前,瑞士这个小国被奥地利统治.

4. Many centuries ago, Scotland was ruled by a king named Robert Bruce.
    许多世纪以前，苏格兰由一位名叫罗伯特·布鲁斯的国王所统治着。