official
/əˈfɪʃəl/
having official authority or sanction
中文释义：官方的；正式的
The official language of Brazil is Portuguese.
巴西的官方语言是葡萄牙语。
We received an official letter confirming our appointment.
我们收到一封确认任命的正式信函。
/əˈfɪʃəl/
having official authority or sanction
中文释义：官方的；正式的
The official language of Brazil is Portuguese.
巴西的官方语言是葡萄牙语。
We received an official letter confirming our appointment.
我们收到一封确认任命的正式信函。