本期內容：

After years of development in the desert north of Los Angeles, a gigantic, six-engined mega jet with the wingspan of an American football field flew Saturday morning for the first time. "We finally did it," said Stratolaunch Systems CEO Jean Floyd at a news conference from the hangar at Mojave Air & Space Port. "It was an emotional moment to watch this bird take flight." Stratolaunch, the company founded in 2011 by the late Microsoft co-founder Paul Allen, conducted the first test flight of the world's largest plane.

gigantic: adj. 巨大的（colossal）
engine: n. 發動機；引擎
engined: adj. 配有……個發動機的
mega: adj. 超級大的
a mega shopping mall: 超級大的購物中心
jet (plane): 噴氣式飛機
jet lag: 時差反應
with the length重量……
wingspan: n. 翼展
news/press conference: 新聞發布會
hangar: n. 機庫
emotional: adj. 令人情緒激動的
an emotional/exciting moment: 激動人心的時刻
bird: n. 飛機；鳥
take flight/off: 起飛
found: vt. 創立
late: adj. 已故的
conduct: vt. 組織；實施

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