痕迹

他tā没有méiyǒu留下liúxià痕迹hénjì就jiù消失xiāoshī了le。

He disappeared without a trace.

桌子zhuōzi上shàng有yǒu个gè痕迹hénjì。

There is a trace on the table.

火星huǒxīng上shàng没有méiyǒu生命shēngmìng的de痕迹hénjì。

There is no sign of life on Mars.

雨yǔ后hòu草地cǎodì上shàng，虫子chóngzi沿yán著zhù泥土nítǔ爬行páxíng，留下liúxià微小wēixiǎo痕迹hénjì。

After the rain, on the grass, insects crawl along the soil, leaving tiny marks.