本期导读：
哪一个国家的个性车牌最贵（用这条做标题）？
用牙线只对牙齿好吗？
既然飞机上不能吸烟，为何必须要有烟灰缸？
Fact One:
Owners of personalized license plates in Uganda are facing a tax increase of over 300%, which will raise the tax from $1,498 to $5,992.
乌干达的个性车牌拥有者要多交300%的税，可多达5992美元。
personalized a.个性化的
license plate 车牌 (英式)number plate
Uganda 乌干达
Fact Two:
Researchers have found that flossing your teeth can help your memory. Flossing prevents gum disease, which prevents stiff blood vessels, which cause memory issues.
研究者发现用牙线可以提高记忆力，也可以预防牙龈问题和血管硬化。
floss n.& v. （用）牙线
gum n.牙龈，口香糖
blood vessels 血管
stiff a.僵硬的
Fact Three:
Even though smoking has been banned on airplanes, ash trays are mandatory on every plane. This is for safe disposal in case someone breaks the law.
虽然飞机上是不允许吸烟的，但烟灰缸是每架飞机必须要有的。这是防止有人违反而能安全的处置烟头。
ash tray 烟灰缸
mandatory a.必须的，强制的
disposal n.处理，安置
哪一个国家的个性车牌最贵（用这条做标题）？
用牙线只对牙齿好吗？
既然飞机上不能吸烟，为何必须要有烟灰缸？
Fact One:
Owners of personalized license plates in Uganda are facing a tax increase of over 300%, which will raise the tax from $1,498 to $5,992.
乌干达的个性车牌拥有者要多交300%的税，可多达5992美元。
personalized a.个性化的
license plate 车牌 (英式)number plate
Uganda 乌干达
Fact Two:
Researchers have found that flossing your teeth can help your memory. Flossing prevents gum disease, which prevents stiff blood vessels, which cause memory issues.
研究者发现用牙线可以提高记忆力，也可以预防牙龈问题和血管硬化。
floss n.& v. （用）牙线
gum n.牙龈，口香糖
blood vessels 血管
stiff a.僵硬的
Fact Three:
Even though smoking has been banned on airplanes, ash trays are mandatory on every plane. This is for safe disposal in case someone breaks the law.
虽然飞机上是不允许吸烟的，但烟灰缸是每架飞机必须要有的。这是防止有人违反而能安全的处置烟头。
ash tray 烟灰缸
mandatory a.必须的，强制的
disposal n.处理，安置
