There are a number of vitamins that are vital for good hair health, the main ones being vitamins C, D and E, and in a balanced diet all these vitamins should be readily available.

有许多对头发健康至关重要的维生素，主要有维生素C、D和E，而在平衡的饮食中所有这些维生素应该很容易获得。

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You can also see from the line above the total size of the E-mail (7632 bytes) and the number of recipients (one).

从上面的一行内容中，您还可以看到电子邮件的总计大小(7632字节)以及接收者的数目(一个)。

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One disadvantage of the word model is that the number of "words" in E-mail is virtually unbounded.

这种单词模型的缺点之一是，电子邮件中采用的“单词”的数量实际上是无限制的。

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"There are concerns in most O.E.C.D.countries that the number of nurses is too small to respond to the demand.

VOA: special.2010.06.07

And, that's equal to the product of e the proton number times e.

正等价于,质子数乘以。

麻省理工公开课 - 固态化学导论课程节选

We notice that the value of E at r naught is negative, as it should be. It's a negative number.

我们主要到在r圈时E的值为负，和它本来的值一致，是一个负数。

麻省理工公开课 - 固态化学导论课程节选

With an increase in e-mail reading via the phone comes an increase in reading e-mails around the clock (and likely an increase in the number of e-mails sent and received, as well).

FORBES: Using your phone for more than just calls and texts?

That kind of fervor is rampant in the wired West, where the number of e-merchants is expected to increase from 17, 500 last year to more than 400, 000 by the end of 2003, according to Internet market research firm Keenan Vision.

CNN: THE E-TAIL REVOLUTION

Like a growing number of business executives and teenagers I am overwhelmed by the number of e-mails, texts, instant messages, and social media come-ons I receive every day.

FORBES: How One CEO Aggressively Disconnects