1、用烈火烧硬的
... hard-boiled 无情的 hard-burned 用烈火烧硬的 hard-core 核心部分成 ...
2、过火的
...过火，过激 overshooting过火的 hard burned; hard-burned过火了 carry something too far ...
hard-burned brick[建] 过烧砖;烧透砖
hard-burned plaster高温焙烧石膏
hard-burned gypsum炼石膏
hard-burned refractory ware硬烧耐火器材
treated by the hard-burned lime生石灰处理