Duricrust
n. [地]硬壳,铝铁硅钙壳
🗣️ 情景例句
Who's the valedictorian of this class?
谁是班里优秀的毕业生？
He admitted his guilt to the police.
他向警方承认犯罪。
The garden was soon littered with chunks of metal which had once made up a lawn mower.
一会儿工夫，割草机便被拆成一个个金属零件，乱七八糟地堆在花园里。