他的中文说得断断续续，听起来很有趣。
tāde zhōngwén shuōdé duànduànxùxù ， tīngqǐlái hěn yǒuqù 。
His Chinese is spoken intermittently, and it sounds very interesting.
这段时间的天气断断续续，总是阴晴不定。
zhè duàn shíjiān de tiānqì duànduànxùxù ， zǒngshì yīnqíngbùdìng 。
The weather during this period has been intermittent, always changing between sunny and cloudy.
他的工作进展断断续续，效率很低。
tāde gōngzuò jìnzhǎn duànduànxùxù ， xiàolǜ hěndī 。
His work progress is discontinuous, and the efficiency is very low.