National security agency
un. 国家安全局\\n
🧩 词语组成解析
national
['næʃnəl]
adj. 国家的;国有的;国民的;民族主义的;
n. [常用复数]全国性比赛;某国国民;全国性报刊;（机构等的）全国总部;
nat出生的+ion名词后缀+al...的 →出生地的 →国家的，民族的
🗣️ 情景例句
They gave a banquet in honor of the delegation.
他们设宴招待代表团。
Come in,please.
请进！
a flight attendant told us to keep calm and to get off the plane quietly as soon as it had touched down.
一位空中乘务员告诉我们要保持镇静，待飞机一着陆，就马上不声不响地离开飞机。