And maybe it's something that people in Oxford don't do very often, but if you ever make it to the sea, and you swallow a mouthful of seawater, has about a million bacteria and on the order of 10 million viruses.
跑到海边喝上一口海水 或许不是牛津人 经常做的事 但请记住每一毫升的海水里 有大约一百万个的细菌 其中的病毒更是以千万计