Gini coefficient

　　●Also known as the Gini index.It is a statistical measure of distribution developed by the Italian statistician Corrado Gini (1884 - 1965) in 1912. It is often used to measure income distribution or wealth distribution among a population.　　The coefficient ranges from 0 (or 0%) to 1 (or 100%), with 0 representing perfect equality and 1 representing perfect inequality.　　Values over 1 are theoretically possible due to negative income or wealth.

　　Reckon sth up (phrasal verb)

　　●To calculate the total amount of something.

　　（計算，核計）

　　Examples:　　

　　1.She can reckon up a bill faster than any calculator.

　　2.He reckoned up the cost of everything in his mind.

　　Pertinent (adj.)

　　●Relevant or applicable to a particular matter.

　　Examples:　　

　　1.Chapter One is pertinent to the post-war period.　　

　　2.She asked me a lot of very pertinent questions.

　　In place (idiom)

　　●To exist and be capable of being used.

　　（到位，可供使用）

　　Examples:　　

　　1.We didn't have the systems in place to deal with so many orders.　　

　　2.A staff of four counsellors is in place to handle calls to the new hotline.

　　Scavenge (verb)

　　●To search for and collect (anything usable) from discarded waste.

　　 （（從垃圾中）撿拾（可用的東西））

　　Examples:　　

　　1.The flood has left people and animals desperately scavenging for food.　　

　　2.We managed to scavenge a lot of furniture from the dump.