Coefficient of safety
[化] 安全系數
?? 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];
??? 情景例句
They'll just make him sad.
那些只會讓他悲傷。
Teaching others teaches yourself.
教學相長。
The Swedes were the first to recognize that public official like civil servants, police officers, health inspectors or tax-collectors can make mistakes or act over-zealously in the belief that they are serving the public.
是瑞典人首先認識到政府工作人員如文職人員、警官、衛生稽查員、稅務人員等等也會犯錯誤或者自以為在為公眾服務而把事情做過了頭。