Tooth decay is so common in the daily life.

在日常生活中牙痛已经是很常见的了。

youdao

Tooth decay is common in the United States and around the world.

龋齿在美国以及全世界都很普遍。

youdao

Tooth decay is common in the United States and around the world.

龋齿在美国以及全世界都很普遍。

youdao