外科医生先清理伤口,再逐层缝合,以减少感染和疤痕增生的风险。Wàikē yīshēng xiān qīnglǐ shāngkǒu, zài zhúcéng fénghé, yǐ jiǎnshǎo gǎnrǎn hé bāhén zēngshēng de fēngxiǎn.The surgeon first cleaned the wound, then sutured it layer by layer to reduce the risk of infection and scar overgrowth.
医生用细线把他手上的伤口缝合好了。Yīshēng yòng xì xiàn bǎ tā shǒu shàng de shāngkǒu fénghé hǎo le.The doctor stitched up the wound on his hand with fine thread.
这件旧外套的裂口需要重新缝合。Zhè jiàn jiù wàitào de lièkǒu xūyào chóngxīn fénghé.The tear in this old coat needs to be sewn up again.