让你信赖的朋友们给你建议，帮助你学习，当你做的好的时候给你积极的反馈。
Enlist trusted friends to give you advice, help you study, and give you positive feedback when you do well.
尽管们不能依赖客户端的验证来保持应用的安全性，但它们可以给你即时的表单状态的反馈。
Although we can't depend on client-side validations to keep our web application secure, they do provide instant feedback of the state of the form.
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