S06-8 When we left Earth: the NASA Missions 《從地球出發：NASA任務50年》
重點詞匯：
1.Descent 降下，降落，血統
【同】fall
【固】rapid descent of Google’s stock 谷歌股票的迅速下滑
Descend 下降，財產傳給
Ascend 漸漸上升，升高，攀登

2.Decelerate 使減速
【反】accelerate
Accelerate 加速，增速

原音重現：

N: The descent was a very tricky business. Our plan was to start about 50,000 feet altitude, 3,000 miles per hour, to use one continuous rocket burn to decelerate to a hover in the landing area.
飛船降落過程是件很棘手的事，我們的計劃是從海拔50,000英尺處，從時速3,000英里開始，用一個持續的燃燒火箭來減速，直到飛船在陸地上空變為盤旋狀。