Unofficial

(adj)

Anh

ˌʌnəˈfɪʃl

Mỹ

ˌʌnəˈfɪʃl

Giải nghĩa: Not officially authorized or confirmed.

Nghĩa: Không chính thức

Không phổ biến

Cách sử dụng từ vựng "Unofficial" trong câu (ví dụ)

Apple pie is an unofficial symbol of the United States and one of its signature comfort foods.

The record was an unofficial human speed record and until the Space Shuttle came along the record was unbroken.