棉线

mián xiàn fǎng zào pǐn

棉线仿造品

a cotton imitation

cū mián xiàn

粗棉线

thick cotton string

wǒ men yòng yī gēn zhēn hé mián xiàn bǎ dòng féng hé le

我们用一根针和棉线把洞缝合了。

We got a needle and cotton thread and sewed up the hole.