英语新闻听写 牙刷勤更换

New York City dentist, Keith Arbeitman states that most people aren't changing their toothbrushes enough.

纽约牙医基思·阿贝特曼说，大多数人更换牙刷的频率都不够。

It is suggested that every three months a toothbrush should be replaced.

建议每三个月更换一次牙刷。

Arbeitman explains, "It really depends how often you use your toothbrush.

阿贝特曼解释说：“这其实取决于你用牙刷的频率。

Once the bristles¹ start to bend, you're not really cleaning as effectively."

一旦刷毛开始弯曲，就不能有效地清洁牙齿。”

He says you can check when your brush is ready to exchange by licking² your teeth after you brush them.

他说，刷牙后，你可以舔舔牙检查牙刷是不是该换了。

If they aren't sleek³ and smooth than it's time to replace your toothbrush.

如果牙不光滑，那就更换牙刷。

1 bristles   

短而硬的毛发，刷子毛( bristle的名词复数 )

参考例句：

• the bristles on his chin 他下巴上的胡楂子
• This job bristles with difficulties. 这项工作困难重重。

2 licking   

n. 殴打，挫败 动词lick的现在分词形式

参考例句：

• The steak is so delicious that he's licking his lips. 牛排这么香，使得他垂涎欲滴了。
• The little boy is licking the ice-cream cone. 小男孩在舔着冰淇淋蛋卷。

3 sleek   

adj.光滑的，井然有序的；v.使光滑，梳拢

参考例句：

• Women preferred sleek,shiny hair with little decoration.女士们更喜欢略加修饰的光滑闪亮型秀发。
• The horse's coat was sleek and glossy.这匹马全身润泽有光。