🗣️ 情景例句
If the owners don't claim the dog in forty-eight hours,
如果狗的主人在四十八小时内不认领，
Do not swap horses when crossing a stream.
处在危难中，不宜大更动。
and these will ply the short wings with such irresistible power that they can bore for long distances through an opposing gale before exhaustion follows.
这些肌肉以巨大的力量扇动短小的翅膀，使这类鸟能顶着大风飞行很远的路才会疲劳。