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。

youdao

For example, the -d option shows the overall number of packets received, transmitted, and dropped in your communication subsystem.

例如，- d选项将显示您的通信子系统所接收的、传输的和丢弃的数据包的总数。

youdao

Delete it by entering d, and enter the partition number when prompted.

输入d以删除该分区，然后会出现一个提示，这时输入分区号。

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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

That's going to presumably be given--mathematically if we gave it a number, we'd slap a zero on that.

如果用数学解释,给它一个数字，给它一个零。

耶鲁公开课 - 死亡课程节选

Suppose I take a number. I'd like to add up all the digits inside of the number.

我可以用到刚刚提到的工具,来实现这个功能。

麻省理工公开课 - 计算机科学及编程导论课程节选

When he'd accumulated a sufficient number, he'd toss both butts and bottle out the window.

WSJ: Recycled Emotions

Users can capture footage from their 3-D cameras, edit them, and export the finished product to a number of different 3-D formats, from those used in the theater to home devices.

FORBES: Roxio Lets You Make Your Own "Avatar" Home Video

D. number and that you had to vote for a certain party.

NPR: History of Fraud Overshadows Mexico Election