#口腔知识小科普只要能认真刷牙,维持好口腔卫生,有问题及时处理,无论多大年龄,都是能拥有一口健康好牙的。 https://twitter.com/DentistLee1/status/1169985464377335808
https://t.me/private_channel_c14370a/2728
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.