单词:fluoride-containing polishing paste
单词:fluoride-containing polishing paste 相关文章
《Letter to Me》 是讲一个成熟男人写了一封信,寄给十七岁时的自己。第一次听到这首歌时心马上静了下来,想起了自己的中学时代。回忆中有很多青涩岁月,有很多自己觉得不能逾越的崁,有很多的困惑迷茫。给十七岁的自己写一封信:不要为了分手而心如刀绞,你最终能够熬
A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti
Me vs. My Boss 我和我的老板 When I Take a long time--I am slow. 我用了很长时间我太慢。 When my boss takes a long time--He is thorough. 我老板用了很长时间他工作仔细。 When I don't do it--I am lazy. 我不做懒。 When
今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟
How You Made Money 你怎么赚的钱 A young man asked an old rich man how he made his money. 一个年轻人问一位富有的老人是怎样赚到钱的。 The old guy fingered his worsted wool vest and said, Well, son, it was 1930. The depth of t