degrade gracefully

基本解釋

HTML 5 was explicitly designed to degrade gracefully in browsers that don't support it.
HTML 5 的設(shè)計(jì)原則就是在不支持它的瀏覽器中能夠平穩(wěn)地退化。
Most of the time, you want to degrade gracefully or return a polite message to the user.
大多數(shù)情況下，您要柔和或有禮貌的消息返回給用戶。
If this is done well, earlier versions of applications can even degrade relatively gracefully when they read newer saved documents -- usually by just ignoring unfamiliar tags and attributes.
如果做得好，應(yīng)用程序的早期版本在讀取較新的保存文檔時甚至可以相對溫婉地降級使用——通常只需要忽略不能識別的標(biāo)簽和屬性。