雪地上留下了一串清晰的痕迹,警方据此判断嫌疑人的路线。Xuědì shàng liúxià le yí chuàn qīngxī de hénjì, jǐngfāng jùcǐ pànduàn xiányírén de lùxiàn.A clear trail was left in the snow, and the police used it to judge the suspect's route.
墙上还留着孩子们涂画的痕迹。Qiáng shang hái liúzhe háizimen túhuà de hénjì.There are still marks of the children's scribbles on the wall.
岁月在老人的脸上留下了深深的痕迹。Suìyuè zài lǎorén de liǎn shang liúxià le shēnshēn de hénjì.The years have left deep marks on the old man's face.