Poor hygiene encouraged the spread of the disease.
糟糕的卫生状况助长了疾病的传播。
Poor hygiene led to high mortality among children.
卫生条件很差，道致了儿童的死亡率很高。
Poor sanitation and poor hygiene habits can easily lead to disease.
环境卫生差和个人卫生习惯不良也容易导致发病。
Poor oral hygiene is also a risk factor.
口腔卫生不良也是一个危险因素。
Poor oral hygiene is also a risk factor.
口腔卫生不良也是一个危险因素。
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