zhèzuò / lǎoqiáo / de / zàizhòngnénglì / yǒuxiàn / huòchē / bìxū / ràodào / xíngshǐ这座老桥的载重能力有限,货车必须绕道行驶。This old bridge has limited weight-carrying capacity, so trucks must take a detour.