When I say "please use English" - it's me telling you polite to use English, this also means that answers should not be made to this post in other languages either.
It's not a matter of knowing the language that the OP (original poster), used or leveraging the use of a online translator.
All communications on the forums should be in English and if the original poster needs to translate, then the OP can use a online translator of choice.
Using English makes this accessible to more people and there's never a question about what's in the post from a moderator perspective.