横神经通往同体节的气门.The transverse nerves pass to the spiracles of their segment.腹面昆虫的腹部体节.The abdominal segment of an insect.脊椎动物的脊柱来源于体节,体节是胚胎发生过程中的过渡性结构.The vertebral column is derived from somites, which are mesoderm that ar...
Peter heard the sound of gunfire...彼德听见了枪炮声。...after a morning punctuated by regular volleys of gunfire...过了枪声阵阵的早上之后The soldiers in the open field were exposed to the enemy's gunfire.旷野中的士兵遭到敌人炮火的攻击。A school bus wa...
He slipped and fell on an airplane gangway as the cameras rolled.在摄像时他不慎滑倒在飞机座位间的通道上。A man in the gangway suddenly stood up to reach for something in the overhead locker.靠通道坐的一名男子突然起身去拿头顶上方行李舱里的什么东西。Walking along the nar...