A user name is a string beginning with a letter followed by at least two, but not more than seven letters or Numbers followed by the end of the string.

用户名是以字母开头，后面紧跟至少两个，但不超过七个字母或数字的字符串，并且紧跟字符串结尾。

youdao

Checking the status of the repository shows that the new file has been added (indicated by the letter a at the beginning of the line), as shown in Listing 5.

检查存储库的状态，会看到已经添加了新文件(由行开头的字母a表示)，见清单5。

youdao

Four to seven lowercase and alphanumeric characters, beginning with a letter.

四到七个小写字母和字母数字字符，以字母开头。

youdao

And,in a letter, she wrote that she was beginning to feel that the German Nazi dictator Adolf Hitler was a very great man.

VOA: special.2009.06.28

To cut government spending and keep the government from going over the debt ceiling, the government will suspend some investments in pension and health benefit funds for federal workers beginning on Monday, Treasury Secretary Timothy Geithner said in a letter to congressional leaders.

MSN: US Treasury says hitting debt ceiling on Monday

First, in the narrative by Walton at the beginning, before he meets with Frankenstein - he complains in a letter to his sister of his lack of education, with the implication that this need of his was neglected by his parents.

BBC: Readers' new meanings for Frankenstein

From the beginning of April, Highland Council will stop providing a service to those properties where no response to February's letter had been received.

BBC: Highland Council warning on holiday home rubbish