Sleeping sickness is a deadly disease that infects about 60,000 people in Africa each year.
昏睡病是种致命的疾病，在非洲每年约有6万人受到感染。
Sleeping sickness is a deadly disease that infects about 60, 000 people in Africa each year.
昏睡病是种致命得疾病, 在非洲每年约有6万人受到感染。
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