一只大雁的翅膀扇动空气，在身后留下一股气流。
A goose's wings churn the air and leave an air current behind.
每只鸟会以同样的频率扇动翅膀吗？
Is every bird flapping its wings at the exact same frequency?
它扇动着大翅膀，发出吵闹声，奔到陆地上又冲进水里。
It would rush over the land or water noisily flapping its great wings.
它扇动着大翅膀，发出吵闹声，奔到陆地上又冲进水里。
It would rush over the land or water noisily flapping its great wings.
应用推荐