難度
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健康的牙齒通常是乳白色或淡黃色，並且會隨著年齡增長而顏色漸深。
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混合題型
Healthy teeth are usually off-white or light-yellow and will turn darker as one ages. However, you may have seen someone with exceptionally white teeth and wondered how they manage to keep them so bright and shiny. The truth is that there are a number of ways to make your teeth color look beautiful, and thankfully, they are simple and easy to incorporate into your daily routine.
Like many solutions to common problems, the best answers are the most obvious. A combination of brushing your teeth and using floss regularly is the best way to maintain good oral hygiene. Dentists recommend two minutes of brushing with toothpaste containing fluoride twice per day and flossing once a day. In addition, a feasible strategy to help prevent tooth discoloration is to rinse your mouth with mouthwash after you eat.
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單字片語整理
Words in Use
●
off-white
[ˋɔfˋhwaɪt]
a. 乳白色的
●
toothpaste
[ˋtuθ͵pest]
n. 牙膏（不可數）
●
fluoride
[ˋfluə͵raɪd]
n. 氟化物
●
mouthwash
[ˋmaʊθ͵wɑʃ]
n. 漱口水
●
disinformation
[dɪs͵ɪnfɚˋmeʃən]
n. 假消息
●
enamel
[ɪˋnæm!]
n. 琺瑯
Practical Phrases
●
manage to V
成功做到/設法做到⋯⋯
Jamie managed to contact the busy manager in that company.
傑米成功聯絡到了那家公司業務很繁忙的經理了。
●
in an attempt to V
試圖做……
In an attempt to beat the traffic, many people hit the road earlier.
為了避免交通擁擠，許多人提早上路。
●
be aware + that 子句
知道／注意到⋯⋯
You must be aware that a blood donation can save someone else's life.
你一定知道捐血可以救人一命。
●
wear away... / wear... away
磨掉／磨損⋯⋯
The soles of my boots were worn away after a few months of hiking.
去健行幾個月後我的靴子的鞋底磨損了。
●
hint at...
暗示／示意著⋯⋯
The general manager hinted at the possibility of opening a new branch next summer.
總經理暗示來年夏天開設新分公司的可能性。
●
baking soda
小蘇打
●
the bottom line
最重要的事實
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