每年的9月20日是全国爱牙日，今年爱牙日的主题为推动全社会关注我国儿童口腔健康。
China will launch a campaign to draw attention to the dental health of the nation's children on the annual "national day for dental care" which falls on September 20.
每年的9月20日是全国爱牙日，今年爱牙日的主题为推动全社会关注我国儿童口腔健康。
China will launch a campaign to draw attention to the dental health of the nation's children on the annual "national day for dental care" which falls on September 20.
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