You believe that disease is necessary, that you have got to expect a certain amount of it.
如果你相信疾病是不可少的，那么你肯定会患上不少病。
Modern medicine owe a great deal to the discovery of certain tiny disease-carrying organisms.
现代医学大大归功于某些传达室染疾病的微生物的发现。
To determine a certain type of disease, one of the crucial indicators is heart murmur.
若要确定到某一类型的疾病上，其中一个关键的指标为心脏杂音。
He got a certain contagious disease at the end of year.
年底时他得了一种传染病。
He got a certain contagious disease at the end of year.
年底时他得了一种传染病。
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