许多妇女在三十五六岁时开始染发。
不过有个前提，就是他们不染发。
大多存在于指甲油和染发剂中。
职员在染发后，要确保发根不露出自然色。
Employees should ensure that natural roots are not showing if they have coloured their hair.
很多年轻人都染发了。
过多的烫发和染发会对发质造成损害。
它有时伴随着各种感染发生，包括流感。
It sometimes develops following a variety of infections, including influenza.
—深色染发剂：已被证明含有致癌化学物质煤焦油。
Dark hair dyes: They are known to contain coal tar, a carcinogenic chemical.
我所欣赏的是，这样比去沙龙染发便宜太多！
我是没什么问题的-我也不是对染发剂有意见。
选择不同的发型，比如染发或梳毛也能有所帮助。
Finding different ways of styling your hair, like dyeing or combing, also can help.
再次庆幸自己不会染发了，想起来自己也很久没涂指甲油了。
Again - very happy I don't dye my hair, and come to think of it, I don't wear nail polish any longer either.
自己在家染发？
他们使用染发剂的一种色素，它可以完全导致过敏症。
They share a pigment used in hair dyes, which can lead to problems down the line.
2001年11月，雷富礼先生以收购染发剂公司伊卡璐开始。
Mr Lafley began with the acquisition of Clairol, a hair-dye company, in November 2001.
大多数感染发生在儿童早期，受感染者并无任何明显症状。
Most infections occur in early childhood and those infected do not experience any noticeable symptoms.
没有这些基础的设施，就意味着很多本可预防的感染发生。
Not having these basic amenities means lots of otherwise preventable infections.
甚至贝鲁斯科尼老人家暂时也不得不继续染发以永葆秀发。
For the time being, even Mr Berlusconi will have to continue to dye his locks.
在病毒传播广泛的地区，大多数甲型肝炎感染发生在儿童早期。
In areas where the virus is widespread, most HAV infections occur during early childhood.
这种认识已伴随发生行为改变，预期会减少人类感染发生的机会。
This awareness has been accompanied by behavioural changes that are expected to reduce opportunities for human infections to occur.
其次是尼安萨省，该地区的HIV感染发生率在肯尼亚位居榜首。
The next greatest increase was in Nyanza province, which has the highest prevalence of HIV infection in Kenya.
扎里夫说：“我可以告诉你，他的头发百分百自然，他不会染发的。”
'I can tell you that his hair is 100 per cent natural,' Zariff said. 'He wouldn't get it coloured.
比较典型的是为了掩盖白发而染发但你也可以为了好玩而体验不同的颜色。
Men typically color their hair to hide the gray but you can also try different colors just for fun.
看到我注视着他头上又黑又密的直发，他说：“我染发已经有很多年了。”
He caught me gazing at the thick black spiky forest matting his head. "I've been dyeing it for years" he said.
看到我注视着他头上又黑又密的直发，他说：“我染发已经有很多年了。”
He caught me gazing at the thick black spiky forest matting his head. "I've been dyeing it for years" he said.
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