California is constrained by its mountains and the ocean, to say nothing of the demands of environmentalists keen to preserve its remarkable natural beauty.

加利福尼亚州被山区和海洋所限制，环境学家都强烈要求保持该州的自然美景。

youdao

When you visit, please, keep our beautiful land and precious ocean clean; we want to preserve it for the future generations of the Lawful Hawaiian Kingdom.

当您游览的时候，请保持我们的岛屿和海洋清洁，我们想为我们合法的夏威夷王国的后代们保留一块净土。

youdao

We look to the other side of the ocean to learn how a people which has known how to make itself free, knows how to preserve its freedom. " The assassination of Abraham Lincoln touched the imagination of America's writers.

VOA: special.2009.12.31

Santoro, a Carioca (Brazilian from Rio de Janeiro) and lover of the sea, speaks about the need to preserve the ocean.

UNESCO: Advocates for a Future that is Green and Blue

Understanding and monitoring the ocean is the basis of a global approach to preserve this treasure.

UNESCO: EDUCATION

Protect our Marine Treasures: How can we better preserve the natural and cultural heritage of the ocean and coasts and the essential services that ocean provides to society?

UNESCO: Indigenous Peoples