Fl dr
abbr. fluid drain 液压排水; fluid dram(s) 液打兰（容量单位, 等于3。551634毫升）
🧩 词语组成解析
abbr. 焦距（focal length）；外国语（foreign language）；[物]呎朗伯（亮度单位）；佛罗里达州（美国州名, Florida）
abbr. (=data register) 资料暂存器;(=delivery room) 图书出纳室，产房;
🗣️ 情景例句
Oh, I like it.
噢， 我喜欢哑谜。
Wisdom is a good purchase though we pay dear for it.
我们为了求知识，付出高价也值得。
Eric had been the eldest son of the family, very much older than his two brothers.
埃里克是这家长子。