Mild Lapassalan Jiravechsoontornkul, Language Fluency
Mild Lapassalan Jiravechsoontornkul is a very well-educated (primary, secondary, and higher education by attending a proper school and university) and talented actress in the entertainment field origin of Thailand. So, she knows the Thai language very well just because she was born and grew up here, in another way we can say that Thai is her home/native language or official language of Thailand.
Because Mild Lapassalan Jiravechsoontornkul is working in the Thai industry so, she is also very fluent in the English language which opens the opportunity for her to expand her career in other countries. If she wants to expand it, especially in Asian countries.
If write about Thailand speaking languages, Thailand people also have sign language which is spoken in the villages areas such as Tamil but most Thai people speak Thai very well.