这是这样一个伟大的事业。
成为一个科学家，我可以帮助人类解决在某些领域解决大量艰难的问题，对我来说，这是一项伟大的事业，给我一种成就感。
To be a scientist, I can help the human beings solve a large number of tough problems in certain field, as for me, it is a great cause, bringing me a sense of accomplishment.
成为一个科学家，我可以帮助人类解决在某些领域解决大量艰难的问题，对我来说，这是一项伟大的事业，给我一种成就感。
To be a scientist, I can help the human beings solve a large number of tough problems in certain field, as for me, it is a great cause, bringing me a sense of accomplishment.
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