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- A coin is tossed four times. What is the probability that an odd number of heads is obtained? 投擲一枚硬幣四次，擲得正面次數為奇數的概率是多少？
- As the number of heads and nozzles increase, this characteristic creates even more difficulty in the optimization and line balancing process. 随着贴装头和吸嘴数目的增加，这一特点为工艺最佳化和生产线的平衡造成了更多困难。
- So why should the recorded number of head injuries per battalion increase when men wore metal helmets rather than cloth caps? 为什么从布帽子换为金属头盔后，记载的每个部队头部受伤人数却增加了呢？
- The number of fish in coastal waters has decreased. 沿海鱼的数量已减少了。
- A number of new hats were on parade at the wedding. 在婚礼上见到有些人戴著新式的帽子。
- A number of satellites are now circling the earth. 一些人造卫星现在正环绕地球飞行。
- I seriously question a number of your assertions. 对你所坚持的说法，有几点我甚为怀疑。
- A considerable number of guests have come. 相当多的客人已经来了。
- A number of possibilities come to mind. 我脑里出现了好几种可能性。
- Only a limited number of places are available. 只有少数地方可供使用。
- By extension, an array of any number of dimensions. 广义来说，矩阵可以是任意维数的数组。
- The number of day lose through strike have fall. 因罢工而失去的工作日减少了。
- The number of your finger is ten. 你双手手指的总数是10。
- A number of (ie some) problems have arisen. 已经出现了一些问题。
- If you want to help your visitors, try to reduce the number of headings and links on the homepage, and make those forward links as clear and unambiguous as possible. 如果你想要帮助你的访问者，尝试着减少首有页上标题的数量和文字吧，还得保证这些连接指向尽可能的清晰。
- A number of cables are needed in this project. 这项工程需要大量电缆。
- I have a number of important things to do today. 今天我有许多重要事情要做。
- I have five times the number of Tom's books. 我有五倍于汤姆的书。
- Only a limited number of places is available. 只有少数地方可供使用。
- The approximate number of boys in the school is300. 这所学校男生数约为三百名。
