Chinese full stop “。” can't be split.

[BrightXiaoHan]

（掌声）这个是，盛装舞步。

The result generated by command sacremoses -l zh -j 4 tokenize < input > output is

（ 掌声 ） 这个是 ， 盛装舞步。

I think it should be

（ 掌声 ） 这个是 ， 盛装舞步 。

[XapaJIaMnu]

For tokenizing Chinese you should use something like spacy_pkuseg, as tokenizing Chinese is a more complicated problem than what sacremoses is designed to handle.