### Chinese: 虽然他的几款社交软件现在的日活比较高，也是主流的社交软件，比如Facebook，WhatsApp等等，但是面对tiktok的快速发展，脸书也没有什么信心，颠覆之间也就是眨眼的功夫。
### English: Although several of his social software are now relatively high in daily life, but also mainstream social software, such as Facebook, WhatsApp, etc., but in the face of the rapid development of Tiktok, Facebook has little confidence, and the subversion is also a blink of an eye.
### Errors: There is a major error of incorrect translation has stylistic problems at "Although several of his social software are now relatively high in daily life,". There is a major error of incorrect translation includes information not present in the correct translation at "but also mainstream social software,". There is a major error of incorrect translation is missing content from the correct translation at "However, in the face of the rapid development of Tiktok,". There is a minor error of incorrect spelling or capitalization at "Tiktok". There is a minor error of wrong grammatical register (eg, inappropriately informal pronouns). internal inconsistency (not related to terminology) at "a blink of an eye".

### Improved English: Although the DAU of several of his social software is relatively high, and they are mainstream social software such as Facebook, WhatsApp; however, in the face of the rapid development of TikTok, Facebook has little confidence, and subversion could happen in the blink of an eye.