The distant thunder from the coast continued sporadically.

远处海岸仍然零星地传来雷声。

《柯林斯英汉双解大词典》

She attended lectures only sporadically.

她只是偶尔听听课。

《牛津词典》

Fighting continued sporadically for two months.

战斗断断续续地进行了两个月。

《牛津词典》

The call is an apparent challenge to Israel, which has brought in thousands of additional police to prevent clashes like the ones that have broken out sporadically in the city during the past two weeks.

VOA: standard.2009.10.08

Some banks have paid sporadically, while some have missed payments and caught up later.

WSJ: A Bank Zombie Lurks in Little Saigon

Rocket fire has continued sporadically with retaliatory air strikes but there are no reports of casualties.

BBC: Israeli strikes and militant rockets test Gaza truce

Until his mid-50s, Vuillard mostly lived with his domineering mother, whom he sporadically painted.

WSJ: Vuillard, His Mother and Lucy Hessel at New York's Jewish Museum