hiện nay con nguoi viet nam chung ta da co mot thu ngon ngu duoc dung rat pho bien va khong ke tuoi tac hay cap bac,chung ta cung xem day la von ngon ngu thu 2 cua ban than moi khi di ra giao tiep voi ban be,phong van viec làm..... dac biet la chung ta giao tiep noi chuyen voi ban be quoc te thi day[r]