If you are looking for specific input values, Numbers, letters, E-mail addresses, and the like, then only allow this type of data and refuse anything else.
如果您期望的是特定的输入值、数字、字母、电子邮件地址等诸如此类的内容，那么就只允许这种类型的数据，并拒绝任何其他东西。
As we noted earlier this summer, more than 50% of U.S. online users check their E-mail before doing anything else online.
我们早在今年夏天就发现，超过半数的美国网民上网第一件事便是查看他们的电子邮件。
As we noted earlier this summer, more than 50% of U.S. online users check their E-mail before doing anything else online.
我们早在今年夏天就发现，超过半数的美国网民上网第一件事便是查看他们的电子邮件。
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