a festival that is surely going to leave you with sore neck if not a broken one.

a festival that is surely going to leave you with a sore neck if not a broke \u6c42\u7ffb\u8bd1

\u4e00\u4e2a\u4ee4\u4f60\u4e0d\u723d\uff08\u4e0d\u8212\u670d\uff09\u7684\u8282\u65e5

The Mid -autumn Festival is an important traditional festival in China. It falls in August 15th of the lunar calendar year. It is celebrated both in China and many Asian countries.

这里 sore neck 和 a broken one 属于并列，one 也是指代 neck.

if not 在此起到连词的作用, 把下面两句话串联在一起。

a festival that is surely going to leave you with sore neck
if it doesn't leave you a broken neck

如果你的脖子没有问题，节日的到来会让你的脖子酸痛...

不知道你这句话哪里看的。。。好囧。不过翻译仅供参考~

扩展阅读：do it yourself tour ... paradox live ... behave yourself ... realistic ... and that's that ... chinese festivals作文 ... troye sivan ... female 中文翻译 ... i am up to no good ...