upper tranche的用法和样例：
例句
- We no longer manufacture pure cotton shirts as their retail prices tend only to attract that upper end of the market.
我方已不再生产纯棉衬衫因为其零售价格只能吸引高档消费者。 - Trapped off the coast of Maine, he was shipped to Manhattan and dumped into a tank at a posh Upper East Side seafood restaurant.
在缅因州海岸被人捕获之后，他被运到了曼哈顿，倒入位于上东区的一家高档海鲜馆的水池里。
