研究表明每天刷牙两次可预防癌症(双语)
Brushing your teeth regularly could help to prevent bowel cancer, a study suggests。
据研究显示,定期刷牙可有助于预防肠道癌。
This is because the mouth bacteria that cause bleeding gums can travel via the blood to the bowel where they could trigger cancer or worsen existing tumours。
这是因为人口中有可以引起牙龈出血的细菌,而这些细菌能够通 ...