c/t的用法和樣例：
例句
- Green colour,its hardness is only second to diamond and boron carbide.its hardness and brittleness are higher than C.
綠色，硬度僅次於碳化硼和金剛石，比黑碳化硅硬度和脆性略高。 - Whaddya call a piece of white trash who couldn't pass the cops exam and now makes less than a mailman?A C.
你說一個以前過不了警察考試，現在掙得比郵遞員還少的廢物，你怎麼叫他？
