Fick's equation
[电] 费克方程式
🧩 词语组成解析
🗣️ 情景例句
the first settlers in America.
他们是第一批来美国定居的移民。
Fire proves gold, adversity proves men.
烈火显真金，逆境识英雄。
but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home, feeding its flown young as it flies,
在空中十分自如，可以飞行6，000英里，可以飞往北方做窝的老家，再从老家飞回；一边飞一边喂养会飞的雏燕，甚至在顶风时也能在气流中滑翔，似乎气流在帮它前进。