科学家在这个水族馆中从事海洋动物研究，并致力于保护更多的海洋动物。
Scientists at the aquarium also study the animals and work to help many survive.
这是一个美国人民想让我们从事的事业，美国人民想让我们共同致力于这项事业。
That's the project the American people want us to work on. Together.
主要从事贸易服务，致力于中国和世界的联系。
Mainly engaged in trade in services, is committed to China and the world.
主要从事贸易服务，致力于中国和世界的联系。
Mainly engaged in trade in services, is committed to China and the world.
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