The biology of these diseases is terribly complicated.
这些疾病的作用方式极其复杂。
The public is generally uninformed about these diseases.
大众对这些疾病普遍知之甚少。
Smoking is a causative factor in several major diseases.
抽烟是引起几种严重疾病的病因。
They carry a great many diseases.
它们会传播许多疾病。
Others are not affected by certain diseases.
其他人没有受到某些疾病的影响。
Uncleanliness is the root of various diseases.
不注意清洁是各种疾病的根源。
Stress should be put on the prevention of diseases.
疾病应以预防为主。
These special drugs can help treat some kinds of diseases.
这些特殊的药物可以帮助治疗一些疾病。
Some people in the town have become ill from deer transmitted diseases.
一些镇民染上了由鹿传播的疾病。
In addition to tooth decay, there are also gum diseases to watch out for.
除了蛀牙之外，还需要注意牙龈疾病。
Clearly, certain diseases are beating a retreat in the face of medical advances.
很明显，面对医学的进步，某些疾病正在撤退。
Many diseases arise from what people really don't know about in their daily life.
许多疾病是由人们在日常生活中不了解的东西引起的。
Skin diseases are hard to treat.
皮肤病很难治。
Most diseases could be wiped out.
多数疾病是可以消灭的。
But why are these diseases still around?
但是，为什么这些疾病还会出现呢？
We have made progress against many diseases.
我们针对许多疾病取得了进展。
Infectious diseases are not the only problem.
那里不只是传染病问题。
And some of these children later get diseases.
这些儿童中有些在后来患病。
Have you had any chronic diseases in the past?
你过去有没有得过慢性病？
Most people who get these diseases recover fully.
很多感染这些传染病的人，都能充分康复。
I want to try to find out new cures for diseases.
我想尽力去寻求治疗疾病的新方法。
They also check for diseases or pests once a week.
也会进行每周一次的疾病或害虫检查。
But that does not mean the diseases are identical.
但是这并不表示这两种疾病可混为一谈。
All three of the diseases would be treatable today.
这三种疾病如今都能治愈。
New diseases are, by definition, poorly understood.
新的疾病，从它的定义就可以看出，我们对它知之甚少。
The doctor is a specialist in diseases of heart.
这位大夫是一名心脏病专家。
Patients are checked for four different heart diseases.
这家医院针对四种不同的心脏病对病人进行检查。
The emergence and spread of new diseases is one example.
新疾病的出现和传播是一个例子。
The emergence and spread of new diseases is one example.
新疾病的出现和传播是一个例子。
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