How often should you wash your hair? Dermatologists say there’s no rule of thumb. Your shampoo frequency depends on your hair type. A dermatologist is a skin doctor. The expression “rule of thumb” means a method of doing things based on experience and common sense, not science. Dermatologists say people with thin or oily hair should shampoo daily or every two to three days. People with thick or curly hair should shampoo about once a week. Shampooing too often is not good because it washes away the natural oils in hair.
US President Donald Trump takes meticulous care of his hair. If you take meticulous care of something, it means you pay great attention to every detail of it. Trump often boasts that he has beautiful and perfect hair. He once told friends he has a “gorgeous head of hair”. The word “gorgeous” means very beautiful or very attractive. Trump has said it takes about an hour for his hair to dry after shampooing. He doesn’t use a hairdryer. He then meticulously combs his hair to make it look like what he describes as “perfect”.
Trump has long complained about the low water pressure in showers. He said it takes about 15 minutes to wet his hair because of the low water pressure. A 1990s law restricted water flow to 2.5 gallons per minute to save water. Former President Barack Obama ordered that the 2.5 gallons rule should remain even for shower heads with several nozzles (outlets). Trump reversed that in his first term, but Joe Biden reinstated the rule when he was president. Trump found time last week despite his tariff war to sign an Executive Order that every nozzle in a shower head can have 2.5 gallons of water per minute!
你會隔多久洗一次頭？皮膚科醫生（dermatologists）說那是沒有法則（rule of thumb）的。你的洗髮頻密度取決於你的髮質。A dermatologist就是皮膚科醫生。習語 rule of thumb是指基於經驗或常理而非科學所得的法則。皮膚科醫生（dermatologists）說，幼軟或油性髮質的人士應每天又或二至三天洗一次頭；粗厚或捲曲髮質的，則應一周洗一次。洗頭洗得太頻密是不好的，因為它會洗走頭髮中天然產生的油脂。
美國總統唐納德‧特朗普對自己的頭髮則是關懷備至的（meticulous care）。若你 take meticulous care of something，意即你對某事物照顧周到、無微不至。特朗普常自誇他擁有亮麗完美的秀髮，他有次還告訴朋友，他有一頭「華麗（gorgeous）的濃髮」。Gorgeous是指非常漂亮或吸引的。特朗普也曾說，洗頭後要用上一個小時去弄乾，他也不用風筒吹乾，而是一絲不苟地（meticulously）梳理頭髮，令其看上去是他形容為「完美」的髮型。
特朗普對於淋浴水壓太低已經投訴很久了。他說，因為水壓太低，得用上十五分鐘才能弄濕頭髮。一個一九九零年代的法例規定，為了節省用水，出水每分鐘不能多於二點五加侖。前總統巴拉克‧奧巴馬下令，即使是有許多噴嘴（nozzles）的花灑頭，亦要維持這個二點五加侖出水量的規限。特朗普在第一任當總統時撤銷了，但祖‧拜登在任時又恢復了規定。特朗普上星期在貿易戰以外，仍騰出時間去簽署行政命令，容許花灑頭的每一個噴嘴（nozzle）也能有每分鐘二點五加侖的出水上限！
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Michael Chugani褚簡寧
中譯：七刻
