Furthermore, most species do not depend entirely on a single resource, if the major resource for a species becomes scarce, the species can usually shift to alternative resources.

此外，大多数物种并不完全依赖单一的资源，如果一个物种的主要资源变得稀缺，该物种通常可以转向替代资源。

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If not, then it is usually straightforward.

如果不是，那么它通常是直观的。

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Use a prepaid cell phone if you do not usually have one.

如果你平时不经常用手机，那么你要准备一个。

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"Celebrating with our family." "Presents!" "I usually get presents that say Santa Claus on them but I'm not really sure if they're from him."

VOA: special.2009.12.21

But usually, if you are not able to work out something in terms of taking the exam at a different time,

不过通常情况下，你不太可能被允许换个时间参加考试，

临时抱佛脚？也做过 - SpeakingMax英语口语达人

But usually people do not cut ahead in line, even if the other people in line are strangers and may never be seen again.

VOA: special.2009.03.03

Even if they do not usually go, does church figure in people's festive plans?

BBC: Why are churches busier at Christmas?

Not to belabor the obvious, but usually if you get the questions right you not only have a better chance of getting the right answers, but you probably make the whole process so much easier.

FORBES: Are You Making Something Usable? Part 4 -- But Is It Valuable?

There is no perfect way to handle cuts, but some discretion is usually appreciated, if not always employed.

FORBES: NFL Teams Make Their Cuts This Week. Ouch.