Is there defaulted or invalid data?
是否有默认的数据或无效的数据？
Firefox will not submit invalid data.
Firefox拒绝提交无效的数据。
Also notice you have added some CSS to show invalid data.
此外还增加了一些CSS显示无效的数据。
How do you keep invalid data from getting into your system?
如何才能阻止无效的数据进入您的系统呢？
You certainly don't want to corrupt your database with invalid data!
您肯定不希望无效数据损坏您的数据库！
Field expression contains an invalid data type.
字段表达式包含无效的数据类型。
Field expression contains an invalid data type.
字段表达式包含无效的数据类型。
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