第 84 课: 历史和地理-5

Before the Suez Canal was built, a ship sailing from London to Bombay sailed this course. 在修建苏伊士运河以前，从伦敦到孟买的轮船沿着这条航线航行。

After the Suez Canal was built, a ship sailing from London to Bombay sailed this course. 在修建苏伊士运河以后，从伦敦到孟买的轮船沿着这条航线航行。

Before the Panama Canal was built, a ship sailing from New York to San Francisco sailed this course. 在修建巴拿马运河以前，从纽约到旧金山的轮船沿着这条航线航行。

After the Panama Canal was built, a ship sailing from New York to San Francisco sailed this course. 在修建巴拿马运河以后， 从纽约到旧金山的轮船沿着这条航线航行。

This is now an independent country. 现在，这是一个独立的国家。

This is not an independent country. It is part of the United States. 这不是一个独立的国家，它是美国的一部分。

This is not a country. It is a continent. 这不是一个国家， 这是一个洲。

This was an independent country a long time ago. Now it is a part of Great Britain. 很久以前，这曾是一个独立的国家，现在，它是英国的一部分。