健康资讯 file in (鱼贯而入) and file out (鱼贯而出)
file 除了"文件，档案"等意思外，还可以表示 "排成一排的人(物)" (名词)， "列队前进" (动词)等意思。
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"All those dignitaries remained standing to honour us as we filed in—350 evening and weekend college undergraduates, candidates for degrees."
"当我们 — 350名夜校和周末上课的大学本科生、学位候选人鱼贯而入时，所有的贵宾都站着向我们致敬。”
"I stood by the gym door as the children solemnly filed out."
"孩子们一本正经地排着队出去时，我就站在体育馆门口。”
1. dignitary [ˈdɪɡnɪtəri] n. 显贵, 要人, 达官贵人
2. file in: enter by marching in a file, to walk in a line,>
看到暴雪的退出，心里一阵酸涩，本来想今天继续聊聊雅典的公交，但实在百感交集
