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 : 生态系统
: 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"
开始先看图,觉得你说头型怎么这么专业,听完文章之后,原来你又是活学活用变成自己的了,赞!
注意一下,arranged的 a的发音,应该是 /ei/ as in lake的发音.