某些协议和产品支持内置重试，而且是可配置的。
Some protocols and products support built-in retry, which is configurable.
大多数浏览器支持内置的解析和序列化JSON的函数。
Most of the browsers support a built-in function for parsing and serializing JSON.
这两家公司的手机均支持内置的在线服务功能，包括流行的社交网址如Facebook和Twitter。
They both feature built-in support for online services, including popular social-networking sites such as Facebook and Twitter.
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