Preperforative
[医] 穿孔前的
🗣️ 情景例句
and how hard it is
他还说这件事很难
Step by step the ladder is ascended.
登梯需要逐级登。
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。