几十年来，毛皮贸易一直控制着海狸鼠的数量，但在20世纪80年代末，海狸鼠毛制品市场崩溃，导致这种猫大小的动物的数量疯涨。
The fur trade kept nutria in check for decades, but when the market for nutria collapsed in the late 1980s, the cat-sized animals multiplied like crazy.
1990年代，由于财富在全球范围的传播，中产阶级们开始穿着羊毛制品，云先生因此而致富。
As affluence spread worldwide in the 1990s, the middle classes began to wear cashmere and Mr. Yrthashun grew prosperous.
应用推荐