Rcn
abbr. 英国皇家护理学院（Royal College of Nursing）；广域网（remote computer network）；加拿大皇家海军（Royal Canadian Navy）；右侧尾状核（right caudate nucleus）
🗣️ 情景例句
I don't know.
我不知道。
Which one is the longest river in China?
中国哪条河流最长？
We've had to increase our prices on this item by just 8%.
这一种我们不得已也只加了8%而已。