033 忙碌的早晨 - 刷牙

1. You should brush your teeth three times a day. 一天要刷三次牙。
2. Brush your teeth properly. 好好地刷牙。
3. Brush up and down. 刷牙要上下刷。
4. Don't forget to brush deep inside. 不要忘记也要刷里面哦。
5. Clean your teeth and gums thoroughly. 牙和牙床都要彻底刷干净。