在科学课上，我和老师讨论全球变暖和我最近参加的阿拉斯加研究之旅的联系。

In my science class, I discuss how global warming relates to the research trip I recently attended in Alaska with my teacher.

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我要和我的朋友马克去阿拉斯加钓鱼。

I am going fishing in Alaska with my friend, Mark.

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我要和我的朋友马克去阿拉斯加钓鱼。

I am going fishing in Alaska with my friend, Mark.

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