human history is often

意思翻译 人类历史往往 相似词语短语 human history───人类历史 how often is───多久一次 it is often───经常是这样 often───adv.常常，时常；往往，大多 yesterday is history───昨日已成历史 so it is often───所以经常这样 human───n.(Human)人名；(英)休曼；adj.人的；人类的；n.人；人类 cryptography is often used───密码学经常被使用 to...