Now deepin15.4 supports 32 languages, namely Chinese (China), Chinese (Taiwan), Chinese (Hong Kong), English, French, German, Russian, Spanish, Spanish (Latin America), Japanese, Korean, Finnish, Indonesian, Italian, Turkish, Portuguese, Portuguese (Brazil), Polish, Romanian, Dutch, Hungarian, Czech, Greek, Danish, Slovak, Bulgarian, Malay, Swedish, Croatian, Hindi(India), Ukrainian and Amharic (Ethiopia).

We updated many English source files before release, so the translators in 32 languages don't have enought time to translate all source files and we also don't have enought time to buy translations from transifex. Till the release of deepin15.4, not all the translations are 100％ in Deepin aplications and system, but we have to release all 32 languges, so that's what you see, the interface in many applications is English.

Really sorry to bring troubles for you. We will resolve this isuue in next version and also welcome all of you to join transifex to help us translate your local language.

Deepin Technology Team