I swum across the sea.

我游过了大海。

How did you come so far across the sea ice?

你是怎么穿过这么远的海冰来的？

There are lots of ways to travel across the sea.

有很多种方法可以穿越大海。

4,500 years ago Ancient Egyptians used boats like this to sail across the sea.

4500年前，古埃及人使用这样的船只横渡海洋。

We sailed across the sea.

我们乘船穿越了海洋。

The lighthouse casts a beam of light across the sea.

灯塔投射出一道光束穿过海面。

The ship sailed across the sea to reach its destination.

船只横渡海洋到达目的地。

The lighthouse helps ships by making its light shine across the sea.

灯塔通过让光闪耀在海面上来帮助船只。

We shipped across the sea.

我们坐船渡海.

Just as her father came across the sea

就像她父亲当年漂洋过海来到这里