Francolin
n. 鹧鸪
🗣️ 情景例句
I know. I do.
我知道。我会的。
Idle young, needy old.
少壮不努力，老大徒伤悲。
they aroused great interest at the time, they had important theoretical consequences,
这些观察在当时引起了人们极大的兴趣，具有重要的理论意义，