虫歯はよく痛む。

虫歯はよく痛む。

Bad teeth often cause pain.

虫歯(むしば)はよく痛(いた)む。

Mushiba wa yoku itamu.

虫歯 (むしば、うし、くし)

cavity; tooth decay; decayed tooth; caries

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

良く (よく)

nicely; properly; well; skillfully; skilfully; frequently; often

痛む (いたむ)

to hurt; to feel a pain; to be injured; to be spoiled (e.g. food)

Readings: チュウ、キ、むし

Meanings: insect, bug, temper

Readings: シ、よわい、は、よわ.い、よわい.する

Meanings: tooth, cog

Readings: ツウ、いた.い、いた.む、いた.ましい、いた.める

Meanings: pain, hurt, damage, bruise