国语：加拿大发现对抗新冠病毒的有效口服药Canada discovers effective oral medicine against new coronavirus
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“网课存知己，天涯若比邻！”快来听听小海狸上网课的感受吧！小主播时间（Little beavers talk about their feelings of online learning)

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国语：加拿大发现对抗新冠病毒的有效口服药Canada discovers effective oral medicine against new coronavirus

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