The failure of the eradication programme created a belief, held by many, that malaria was impregnable to any kind of frontal attack.
消灭规划的失败令人产生一种信念，许多人均抱持这种信念，即任何正面攻击都无法击溃疟疾。
In this paper, the economic burden of malaria cases is divided into necessary cost and unnecessary cost, necessary cost is a kind of standard cost, which is defined by malaria experts and economists.
本文将疟疾的经济负担分为有效费用及无效费用。有效费用即标准费用，由专家咨询法确定。
Malaria is a kind of serious malady.
疟疾是一种严重的疾病。
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