Common Chemical May Damage Teeth A chemical compound thats been linked to a number of health problems in animal studies may also damage tooth enamel in humans. BPA is found in many resins and plastics that people use everyday, such as water and baby...
A Healthy Monster 健康的怪物 Hi!I'm Maddy the Monster.嗨,我是怪物马蒂. This is my best friend,Anna.这是我的好朋友安娜. I am a young monster.我是个小怪物. I am ninety-nine years,five months,three weeks, four days,two hours a...
[全屏观看] 点击右键- 另存为 可保存这个Flash影片...
She walked into the bathroom. She took the cap off the tube of toothpaste. She squeezed some toothpaste onto her toothbrush. She turned on the cold water. She brushed her upper teeth and spit out some toothpaste. She brushed her lower teeth and spit...
Dont get your teeth veneered, Elmers girlfriend said. I know a girl who did that, and she has had bad breath ever since. Elmer had never heard of such a thing. Thats ridiculous, he said. Veneers are made of plastic. Plastic doesnt give you bad breath...
...