He knows he has limited time before the rest of the movie-distribution industry realizes what has hit it. "We had DVD by mail mostly to ourselves for five years before Blockbuster attacked," he says.
他知道，他面前的时间有限，在其他的发行业明白是什么打击了它之前，“在百视发出攻击之前的五年，几乎只有我们有影碟邮寄，”他说。
Because your brain's "inbox" has limited space and only sleep can clear it out, you'll hit the limit of how much you can take in pretty quickly if you study for hours at a time.
因为你大脑脑“收件箱”的空间是有限的，只能在睡觉时清空，所以如果你选择一次性快速学一堆知识的话，最终能够掌握的也很有限。
Multiple rating downgrades would hit the ECB's financial viability and possibly unleash a financial crisis just at the time that it would have limited means to support the currency bloc's economy.
一旦多个国家的信用评级被降低，则会重创央行的金融能力，甚至有可能在找到支撑欧元区经济的有限方式时引发金融危机。
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