新水坝将改善供水，从而减少饥饿和疾病。

The new dam will improve the water supply and ___thereby reduce hunger and disease.

通过与来自世界各地的人实时互动，你可以日常使用非母语，从而帮助发展你的外语技能。

By interacting live with people from all over the world, you can use non-native languages on a daily basis and ___thereby help developing your foreign language skills.

他投资于可再生能源，从而为环境保护做出贡献。

He invested in renewable energy, ___thereby contributing to environmental protection.