ostentacious： 炫耀的
characterized by vulgar or pretentious display; designed to impress or attract notice.
"books that people buy and display ostentatiously but never actually finish"
ecosystem ： 生態係統
: the complex of a community of organisms and its environment functioning as an ecological unit
encrypt：加密
convert (information or data) into a cipher or code, especially to prevent unauthorized access.
"all calls will be digitally encrypted to make eavesdropping impossible"
開始先看圖，覺得你說頭型怎麽這麽專業，聽完文章之後，原來你又是活學活用變成自己的了，讚!
注意一下，arranged的 a的發音，應該是 /ei/ as in lake的發音.
