1. Tidy up the room.
收拾一下你的房间。
还能这样说：
Clean up your room.
Clear your room.
应用解析：
tidy sth. away 将某物收起;使房间等显得整齐;
tidy oneself a bit 梳理一下;
tidy up after dinner 饭后收拾餐具
2. Please sweep the floor.
请把地扫扫。
还能这样说：
Please clean the floor.
Please have the floor cleaned.
应用解析：
sweep off 扫清;吹走;大量清除;
sweep out of 傲慢地走出;大模大样地离开;
sweep over 风靡，向……扩展;眺望;袭击;将……一扫而光
3. I kept cleaning the house this morning.
今天早上我在不停地清理房间。
还能这样说：
I cleaned up the room all the morning.
It took me a whole morning to clean the house.
应用解析：
be cleaned out 把钱花光;输光;
cut clean through 穿透;
give it a clean 把它弄干净;
keep it clean 守规矩，正派;
keep oneself clean 保持自身清洁
4. It's your turn to take out the garbage.
今天该你扔垃圾了。
还能这样说：
It is time for you to take out the garbage.
Comes your turn to throw the rubbish.
应用解析：
turn right round 转一整圈;
turn-round 归航准备;
turn-round distance 周转距离;
by turns 轮流地;时而……时而……