Roundel
n. 圆形饰物, 小圆盘
📖 牛津释义
oundel
n
circular identifying mark showing nationality, used on military aircraft of some countries 圆形标志（表示国别的符号, 用於某些国家的军用飞机上）.
🗣️ 情景例句
It is already.
现在已经很兴奋了
Habit is a second nature.
习惯成自然。
I can't get home so early, Dad!
这么早我到不了家，爸爸！