shòu / shāng / hòu / zǔ / zhī / yè / jī / jù / zài / pí / xià / dǎo / zhì / huàn / chù / chū / xiàn / zhǒng / zhàng受伤后,组织液积聚在皮下,导致患处出现肿胀。After the injury, interstitial fluid accumulated under the skin, causing swelling in the affected area.