The Flexi Classes thought is fantastic! The instructing technique and product are certainly nicely structured, imagined via and adapted to virtual Discovering.Chu?n b? du h?c: B?n d?ch ???c ch?ng nh?n có th? lo?i b? rào c?n ngôn ng? nh? th? nào?? t?n d?ng t?i ?a n?n t?ng này, ít nh?t b?n ph?i là ng??i m?i b?t ??u nâng cao, bi?t ng? pháp v�