1·Ideally you should keep a tooth brush in your pocket and use it immediately after you have finished eating.
理想情况下，你应该在口袋里放一把牙刷，吃完后立即使用。
2·I know tooth brush and tooth paste.
我知道牙刷和牙膏。
3·The happiness is not in the latest gadgets, the latest electric tooth brush, or something like that.
快乐并不是在最先进的科技玩意儿，像最新的电动牙刷或之类的。
4·Are you offering them a new improved tooth brush?
你是向他们推销一种改进型新牙刷吗？
5·Alarm clock, colour TV, connecting room, hair dryer, mini - bar in room, shampoo, tooth brush, one king - sized bed or two double beds in all rooms.
闹钟，彩色电视，相连房间，干发器，室内小型酒吧，洗发露，牙刷，所有客房均备有一张特大睡床或两张双人床。