Nao
abbr. 国家审计署（National Audit Office）；北大西洋波动（the North Atlantic Oscillation）；全国验光师协会（National Association of Optometrists）
🗣️ 情景例句
It's 5:00 p.m. today.
今天下午5点整。
Rear sons for help in old age; and store up grains against famine.
养儿防老。
We just caught the plane
我们刚好赶上了飞机。