SRT subtitle

 Translate file from English to Chinese

https://www.onlinedoctranslator.com/en/translate-english-to-chinese-(simplified)_en_zh-CN

Merge 2 language subtitle

https://easypronunciation.com/en/merge-two-subtitle-files-online

Online SRT editor

https://www.happyscribe.com/subtitle-tools/online-subtitle-editor/free

SRT to FCXML

https://resolver.tools/subsimple/