At the top of posting page, there is a Locale tab for drop-down selection, shown as following:

Here three options are available：

1. Any: The post will shows in both English and Chinese interfact, no matter what language is used for input.
2. English: English is used for input, and the post will appear only under English interface.
3. Chinese, Simplified：Chinese is used (either traditional or simplified) is used for input, and the post will appear onlyunder Chinese interface.

Attention:

1. When you first open the post/edit page, the default option for 'Locale' tab is set to you current site language.
2. If you post only in one language and do not plan to create a counterpart in another language, it is highly recommended you select 'Any' for the locale tab, otherwise your post will appear in only one language interface and be 'missing' under another language interface.