许多儿童因此夭折(也有其他原因)，年迈题弱的人也总是面临着它们的威胁。

Many children died very young from these diseases and others, and the weak and elderly were always at risk。

youdao

许多儿童因此夭折(也有其他原因)，年迈题弱的人也总是面临着它们的威胁。

Many children died very young from these diseases and others, and the weak and elderly were always at risk。

youdao