const time = (target - pos) / sp;
村里的老人记得那天“交易”的情形：阿爸被放在一个旧菜篮子里，垫着布。篮子旁挂着一捆用红绳扎着的长寿面。阿嬷把钱交出去，孩子抱走。，这一点在heLLoword翻译官方下载中也有详细论述
ITmedia �r�W�l�X�I�����C���ҏW�������삷���������[���}�K�W���ł�。同城约会是该领域的重要参考
Git packfiles use delta compression, storing only the diff when a 10MB file changes by one line, while the objects table stores each version in full. A file modified 100 times takes about 1GB in Postgres versus maybe 50MB in a packfile. Postgres does TOAST and compress large values, but that’s compressing individual objects in isolation, not delta-compressing across versions the way packfiles do, so the storage overhead is real. A delta-compression layer that periodically repacks objects within Postgres, or offloads large blobs to S3 the way LFS does, is a natural next step. For most repositories it still won’t matter since the median repo is small and disk is cheap, and GitHub’s Spokes system made a similar trade-off years ago, storing three full uncompressed copies of every repository across data centres because redundancy and operational simplicity beat storage efficiency even at hundreds of exabytes.，这一点在Line官方版本下载中也有详细论述
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