clearkey清除键clearadj.清楚的；明确的；明白(某事)的；清晰的；清澈的；晴朗的；头脑清醒的v.清空；清除；澄清；放晴；使明确adv.清楚地；彻底地n.空地clear liver and cholagogue清肝利胆Clear Frit with High Boronclear the decks for actionvt.消除船甲板上的障碍以备作战(作准备)Clear buffer to a constant清除缓冲区为一个恒量Clear-cutting forestland森林皆伐迹地Clear ice on the runway.跑道上有明冰。clear and bright moonlight月色清明clearing house association票据交换协会clear- sighted subsidies明补clear cell chondronsarcoma透明细胞软骨肉瘤