??英语一
【商】dirt-cheap??adj.非常廉价的???????brand??n.品牌
【例】?by offering on-trend items at dirt-cheap prices, cline argues, these brands have hijacked fashion cycles, shaking all industries long accustomed to a seasonal pace.?
?(2013 text1）
英语二
【科】investigate ??v.研讨
；查询
【例】 dr. kroo says this is one of the areas his team will?investigate further.
(2010 新题型）????