Bka
abbr. 膝下截肢（below the knee amputation）
🗣️ 情景例句
I have always envied your good luck.
我一直羡慕你的运气好。
He doesn't like to talk about political matters.
他不喜欢谈政治的事情。
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，