"连续"这个概念在英文中的说法有很多，最简单的可以用一个副词 consecutively，例如我们上面的例句就可以翻成 "We're gonna have two parties consecutively next weekend." 当然你也可以用片语 in a row 或是 back-to-back 来替换这个 consecutively。In a row 的原意是排成一列，例如 three days in a row 就是三天排成一列，也就"连续三天"的意思。而 back-to-back 字面上则是"背贴背"，当然也有连续的意思在内。比方说期末考到了，"明天居然连续考三科"用英文说出来就是 "We'll have three tests in a row tomorrow." 或是 "We'll have three tests back-to-back tomorrow."