By studying bacteria that flourish in the oxygen-free water, scientists hope, among other things, to learn how simple life-forms can lead to more complex ones.
通过研究这些生活在无氧环境下细菌，科研人员希望了解这些简单的生物是如何进化成更为复杂的生物的。
Evil friends lead us astray and may destroy our life, while good ones drive us towards the right and make our life successful.
损友会把我们误入歧途，毁坏我们的生活，而益友会推动我们往正确的方向，使我们的生活成功。
Evil friends lead us astray and may destroy our life, while good ones drive us towards the right and make our life successful.
狐朋狗友会使我们误入歧途，毁了我们的一生；而益友会使我们明辨是非，使我们成功。
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