1·When you travel, don't forget to pack your toothbrush.
当你要去旅游时，别忘了带你的牙刷。
2·In most families, toothbrush, gargle, towels, etc and closestool coexist one room.
大部分家庭中，牙刷、漱口杯、毛巾等与马桶共处一室。
3·523 students cleaned their teeth within ten minutes of eating. When possible, they used a toothbrush; when this was impossible, they washed their mouth thoroughly with water.
523名学生在吃饭后十分钟内刷牙。如果情况允许的话，他们会使用牙刷；否则，他们会用水彻底清洗口腔。
4·Seeing as you put a toothbrush in your mouth two or more times per day, it's worth going with a reputable manufacturer.
想象下你将用一把牙刷每天两次甚至更多地放入你的嘴巴，我想选择一个有声望的生产商会好些。
5·He has developed several prototypes of hand-cleaning devices that can be mounted on walls, as well as a portable, battery-operated model the size of a large electric toothbrush.
他发明了好几种洁手装置的原型机，这些机器可以悬挂在墙上，跟那种便携式的电动模型一样，大小相当于一支较大的电动牙刷。