68.We‘re out of toothpaste. 我们没有牙膏了。 69.Brush for three minutes. 一定要刷三分钟。 70.Has it been three minutes yet? 三分钟到了吗? 71.Don‘t leave the water running. 不要忘记关水。 72.I hate brushing my teeth. 我讨厌刷牙。 73.Brush my teeth for me, Mom. 妈妈,帮我刷牙。 74.Brush your teeth well, or they will turn black. 要好好刷牙,不然的话,你的牙齿会变 黑。
75.If you don‘t take care of your teeth, you‘ll get cavities. 如果你不好好照顾你的牙齿,你会有蛀牙。 76.If you don‘t brush well, you‘ll have bad breath. 不好好刷牙的话,会有口臭。 77.Don‘t brush your teeth the wrong way. 不要用错误的方法刷牙。