Hunger and poverty are the root causes of much of the world's unrest and misery.

美国是世界上最强大的国家，在可预见的未来仍将如此。

我不是说唱歌手，我是一个电视明星。

The land is our mother, the rivers our blood. We must protect her, for she is our life.

释义：只有连根拔除杂草，才能确保它不会再发芽生长。如果砍草时不除去根部，到了春天杂草还会再度生长。