| 词汇 | critical mass |
| 释义 | noun The company needs one million customers to reach critical mass and start making a profit.公司需要 100 万客户才能达到临界规模并开始赢利。 TV via Internet could only be developed once a critical mass of households had broadband access.在足够多的家庭拥有宽带接入时，网络电视才能开发。 |
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