It changes working radius usually by luffing jib.通常多采用俯仰臂架的方法来实现工作幅度的改变.We set the flying jib and cracked on.我们扯起三角帆,顺风行驶....those who jib at the idea of selling their land.那些拒绝出让土地的人A - type quayside container crane wit...
Pigeons fluttered in and out, cooing gently.鸽子们低声咕咕地叫着，扑扇着翅膀飞进飞出。the sound of pigeons cooing鸽子咕咕的叫声The boy frightened away the pigeons from the roof.那男孩把屋顶上的鸽子吓飞了....