smolder

闷烧、无焰燃烧

The campfire smoldered all night, giving off a thin line of smoke.

营火整晚闷烧著，冒出一缕细烟。

郁积、闷在心里、暗藏

Resentment smoldered in her for years before she finally spoke up.

怨气在她心里郁积多年，她最后才说出口。

（眼神）流露、闪著

His eyes smoldered with anger as he read the letter.

他读信时，眼里燃著怒火。

闷烧、无焰燃烧

Firefighters returned to check the smolder beneath the ashes.

消防员回头检查灰烬底下的闷烧情况。