Some are numeric and others contain letters.
有的是数字，有的则包含字母。
Note: the input string may contain letters other than the parentheses (and).
注意：输入字符串除了左右小括号外，还可能包含字母。
Web names can only contain letters, Numbers, periods, dashes, underscores and Spaces. Please enter a different name.
网站名称只能包含字母、数字、句点、连字符、下划线和空格。请输入其他名称。
A valid name can contain only lowercase letters, Numbers, periods, underscores, and dashes.
有效的名称只能包含小写字母、数字、点号、下划线和连字符。
If you expect a string to contain only ASCII letters, be sure that it does.
如果期望字符串只包含ASCII字母，请确定它确实是这样。
Row 2 has only English characters containing 10 letters (logical characters) that contain 1 byte each.
行2只有英文字符，包含10个字母(逻辑字符)，每个字符包含1字节。
The class name can contain any combination of letters and Numbers, as well as the underscore character, but cannot begin with a number.
类名可以包含字母、数字和下划线字符的任何组合，但不能以数字打头。
The name of the package itself (not the filename, just the name of the package) can contain lowercase letters, Numbers, and the "-" and "+" characters.
软件包本身的名称(不是文件名，仅仅是软件包的名称)可以包含小写字母、数字以及“-”和“+”字符。
Must only contain Unicode letters, underscore characters, and Unicode digits.
必须只包含Unicode字母、下划线和Unicode数字。
When you preview the form to check the calculations, you see that the input fields for Subtotal and Total Price contain the letters NaN, which stand for Not a Number.
当预览表单以检查计算时，可以看到Subtotal和TotalPrice的输入字段包含字母NaN，这表示这个字段不是数字。
Password element lengths must be at least 6 characters long and contain both Numbers and letters.
密码元素的长度必须至少是6个字符，并且同时包含数字和字母。
The safest passwords are at least 8 characters long, include both letters, and number or symbols, and contain no words found in a dictionary.
最安全的口令至少应该包含8个字符，包括字母和数字，且不能包含字典中可以找到的单词。
Other words contain groups of letters that have meanings of their own.
有一些单词则包括了有其自身含义的字母组合。
They can contain both letters and Numbers, but they can't begin with a number.
包含字母或者数字都行，但是不能用数字来开头。
If two words are anagrams, they contain the same letters with the same counts, so their Counters are equivalent.
如果两个单词是换位词，他们包含同样个数的同样字母，所以他们的计数器是相等的。
The safest passwords are at least 8 characters long, include both letters and Numbers, and contain no words from a dictionary.
最安全的口令至少应该包含8个字符，包括字母和数字，其中不能包含字典中可以找到的单词。
Field names can contain only letters, Numbers, or the underscore character.
字段名称只能包含字母、数字或下划线字符。
The coded letters contain people's names, famous sayings and a website to help identify the cell.
这些代码字母包括人名、名言和网址来帮助识别这个细胞。
What two words contain thousands of letters?
哪两个单词包含了所有的字母?。
Good topics concisely describe your problem or question. Bad topics are vague, contain all capital letters, and excessive punctuation.
好主题简洁描述您的问题或问题。坏的主题是模糊的，包含所有大写字母，而且过多的标点符号。
Police said the letters were safe and did not contain threats to lawmakers.
警察说这些信件是安全的，不含有对议员的威胁。
The name can be any combination of letters, Numbers, or an underscore that does not start with a number, and it cannot contain Spaces.
该名称可以是字母、数字或下划线的任意组合，但名称不能以数字开头且不能包含空格。
Writing letters to Santa Claus has been a Christmas tradition for children for many years. These letters normally contain a wishlist of toys and assertions of good behavior.
对于孩子们来说给圣诞老人写信已经是多年来的传统了。这些信里通常包括他们想要的玩具清单以及他们良好的表现。
The content of Han Bamboo slips contain many aspects, such as documents, letters, utensils and so on.
汉简内容极其庞杂，涉及文书、簿册、器物、经籍、簿检、计簿、信札、历谱等多方面。
What two words contain thousands of letters?
那两个单词包含了上千封信？
Bad topics are vague, contain all capital letters, and excessive punctuation.
坏的主题是模糊的，包含所有大写字母，而且过多的标点符号。
Equally striking are the theatrical descriptions that his letters contain.
引人注目的是在那些信中还有关于舞台的描绘。
Note: You may assume the string contain only lowercase letters.
注意：假定字符串中只包含小写字母。
Note: You may assume the string contain only lowercase letters.
注意：假定字符串中只包含小写字母。
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