Zhè / liàng / lǎo / zìxíngchē / de / qūbǐng / yǐjīng / sōngdòng / le / xūyào / jíshí / wéixiū

这辆老自行车的曲柄已经松动了，需要及时维修。

The crank handle on this old bicycle has become loose and needs to be repaired promptly.