Coefficient of hardness
[建] 硬度系數
?? 詞語組成解析
coefficient
[,ko?'f??nt]
n. 系數;（測定某種質量或變化過程的）率;程度;協同因素;
adj. 共同作用的;合作的;
co共同+ef出+fici做+ent...的 → co共同+efficient做出來=有效的 → 一起有效的 → 系數
of
[?v]
prep. 關于;屬于…的;由…制成;
aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣];
hardness
['hɑrdn?s]
n. 堅硬;<物>硬性;困難;冷酷;
??? 情景例句
The gap is too wide to be filled. The largest cut we can offer is 5%.
價格差距太大，我們最多降價5%。
After the flood, the carpets were wet for a month.
洪水過后一個月，毛氈還是濕的。
During the day, sleep comes in snatches.
白天是忽睡忽醒，