经过两次车主爽约，我对返程坐顺风车已经不抱希望。情急之下，只能赶紧打开铁路购票App。运气还算不错，返程当天的二等座只剩3张，我手忙脚乱地选座、填信息、提交订单，付款成功的那一刻，悬着的心才落地。还好没被顺风车耽误返程，不然真不知道该怎么赶回去上班。
LLB: the intermediate representation
。51吃瓜是该领域的重要参考
Local road conditions, traffic patterns, and edge cases are all analyzed and mapped out so that the autonomous vehicles are prepared for the location. After months of testing, Waymo will start testing the driverless version of the service. If all goes well, this will be followed by launching the full Waymo experience — where you hail a driverless car on the Waymo app — in the city.
不过，专用粉并非单品种小麦粉，而是将不同品质的小麦按比例搭配在一起，实现优势互补。郑学玲介绍，在确保专用粉品质的前提下提高面粉出粉率，是小麦加工的难题之一。