例句：
London was hot and dusty.
伦敦很热而且灰尘多。
Thick cobwebs hung in the dusty corners.
积有灰尘的`角落挂着厚厚的蜘蛛网。
The silver candlesticks were tarnished and dusty.
银烛台都发乌了，满是灰尘。
