intermittent

adj. /ˌɪntərˈmɪtənt/ C1

断断续续的；间歇的

Stopping and starting repeatedly rather than continuous.

仙境例句

The Dormouse's story was intermittent, because he kept falling asleep in the middle.

睡鼠的故事断断续续的，因为他讲着讲着就睡着了。