1、clean:英[kliːn]、美[kliːn]
2、adj.清洁的; 干净的; 洁净的; 爱干净的; 爱整洁的; 无有害物的; 无污染的;
3、v.打扫; 除去…的灰尘; 使…干净; 变干净; (烹调前给鱼、鸡等)清除内脏;
4、adv.(行动)彻底地,完全地;
5、n.打扫; 清扫;
6、[例句]The law would encourage companies to switch from coal to cleaner fuels该法律将鼓励企业转而使用比煤更加清洁的能源。
7、[其他]比较级:cleaner 最高级:cleanest 第三人称单数:cleans 复数:cleans 现在分词:cleaning 过去式:cleaned 过去分词:cleaned