Niosh
abbr. National Institute for Occupational Safety and Health 国立职业安全与健康研究所
🗣️ 情景例句
While sitting on the bus I often meet interesting people.
乘车时，我经常碰到一些有趣的人。
I woke up early and got up at 6 o'clock.
我早醒来并且在6点钟起床了。
The children were leaving school on Tuesday when they saw a truck.
星期二，孩子们正放学回家，这时，他们看见一辆卡车。