Carbon(aceous) soil
[化] 碳質污垢
?? 詞語組成解析
soil
[s??l]
n. 泥土;土地，國土;滋生地，溫床;糞尿，肥料;
vt. 弄臟，污辱;給…上糞（施肥）;被弄臟，變臟;用青草飼料喂養（牲口）;
vi. 變臟、受污染或玷污的;變臟;
soil(full)→以青草喂（牛馬）
??? 情景例句
Oh, by the way,
噢，順便問一下
Coming events cast their shadows before them.
山雨欲來風滿樓。
OK.
好吧！