Blc
abbr. 附面层控制（boundary layer control）
🗣️ 情景例句
What number are you at?
你的电话号码是什么？
A clean hand wants no washing.
身正不怕影子斜。
(remember how easily the Apollo astronauts bounded along),
还记得阿波罗飞船中的宇航员轻松地跳跃-