听力教学一直是公共英语教学中最困难但也至关重要的一环。
Listening teaching has always been the most difficult and important part in college English.
她说：“通过寻找基因变异来了解生物学，只不过是漫长治疗的第一步，但也是至关重要的一步。”
She said: "Understanding biology through finding genes is just a first step in a long journey towards treatment, but it is a vital one."
大部分的事情并不是至关重要但也不是毫无意义，你只需尝试去做就能更好地决定哪些方面是适合你的，哪些不是。
Most things aren't all or nothing and by giving things a try you are better able to decide which aspects are a good fit for you and which aren't.
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