Pterotracheidae
翼管螺科
🗣️ 情景例句
How do you stay so young-looking?
你怎样保持如此年轻的？
I wish you to be more careful.
我希望你更谨慎。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。