second stage短语⁵³²⁵³ 基本例句 第二级 The Ares I- X dummy second stage is expected to crash into the ocean about147 miles236 km east of the launch pad. 战神 I- X虚拟的第二级，预计坠入约发射台以东约一百四十七英里236公里的海洋。 yeeyan The rocket is long and slender, and fatter on top because its second stage is thicker than its solid rocket motor-powered first stage. 火箭又长又细，上部有点粗，因为它的第二级比固体燃料火箭发动机驱动的第一级要厚。 yeeyan