Les
abbr. 发射脱离系统（Launch Escape System）
🗣️ 情景例句
and how hard it is
他还说这件事很难
Bottoms up!
干杯！
From the shore line, out to a distance which may be anywhere from a few miles to a few hundred miles,
从海岸线向大海延伸几英里到几百英里的区域是大陆架慢坡，