影片由韩寒执导，沈腾、黄景瑜、尹正等主演，延续系列关于拉力赛车手张驰的故事线，围绕其再度挑战高难度赛道展开。
**MUST** avoid including redundant comments which are tautological or self-demonstating (e.g. cases where it is easily parsable what the code does at a glance or its function name giving sufficient information as to what the code does, so the comment does nothing other than waste user time)
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if(h->ref--)return;
显而易见，现在L3的故事并不性感，所以小鹏才急切地用L4来叙事。
（八）提供数据调用接口服务的，应当建立身份认证、权限鉴别等技术措施，采取监测发现、防范、阻断、处置违法违规调用数据的措施；