zhè / tiáo / shū / yóu / guǎn / yǐ / jīng / shǐ / yòng / le / hěn / duō / nián / xū / yào / jí / shí / jiǎn / xiū

这条输油管已经使用了很多年，需要及时检修。

This petroleum pipeline has been in use for many years and needs timely maintenance.