1.oligopoly n. 寡占;寡頭買主壟斷
The petrol market is an oligopoly.
汽油市場被壟斷 。
2.lax n. 松元音;瀉肚 adj. 松的;松懈的;腹瀉的
One of the problem areas is lax security for airport personnel.
其中一個問題是對機場人員的安全措施不嚴格 。
3.regime n. 政權,政體;社會制度;管理體制
The authorities moved him to the less rigid regime of an open prison.
當局把他移送到管理相對寬松的不設防監獄 。