我们正在尝试了解蜥脚类动物的生物学，比较它们的化石和现代动物的解剖结构，以更好了解它们是如何生活的。

We are trying to understand the biology of sauropods, comparing their fossils to the anatomy of modern animals to get a better idea of how they lived.

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你可以这么说：“我们正在尝试增量开发。”

You can say, "We're experimenting with incremental development."

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最后，我们正在尝试更加严格地控制内燃机释放的气体。

Last but not the least, we are trying to control the emissions from the internal combustion engine much more strictly.

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