台风过后,沙滩上的垃圾被志愿者清理得一干二净。Táifēng guòhòu, shātān shàng de lājī bèi zhìyuànzhě qīnglǐ de yìgān'èrjìng.After the typhoon, the trash on the beach was cleaned up completely by volunteers.
他把房间打扫得一干二净,连窗台上的灰尘都没有了。Tā bǎ fángjiān dǎsǎo de yìgān'èrjìng, lián chuāngtái shàng de huīchén dōu méiyǒu le.He cleaned the room thoroughly; even the dust on the windowsill was gone.
弟弟把盘子里的蛋糕吃得一干二净。Dìdi bǎ pánzi lǐ de dàngāo chī de yìgān'èrjìng.The younger brother ate the cake on the plate down to the last crumb.