如果未找到匹配项，则会继续搜索不区分大小写的匹配项。

If such a match is not found, a subsequent search occurs for a case-insensitive match.

youdao

在使用电子邮件地址时，可能想执行不区分大小写的搜索。

In the case of an E-mail address, you might want to perform a case-insensitive search.

youdao

如果失败，则进行另一次不区分大小写的搜索。

If it fails, a second case-insensitive search is made.

youdao

如果失败，则进行另一次不区分大小写的搜索。

If it fails, a second case-insensitive search is made.

youdao