他轻轻松开油门杆，轮船开始缓缓前行。He gently opened the throttle, and the ship began to ease forward.油门猛然加大到几乎让人恐惧的程度，整个汽车剧烈震颤着。The whole car shuddered with an almost frightening surge of power.你得把油门杆往前推来加大马力。You have to push the throttl...
Scientists are still studying how the compound prevents pathogens from infecting cells.科学家仍在研究这种化合物如何阻止病原菌侵染细胞.Unfortunately, the responsible pathogens were still unknown.不幸的是, 引起疾病的病原仍不明了.Nonexposure of susceptible plan...