chain

他用链条把门拴住了。

He used a ___chain to secure the door.

链条断裂了。

The ___chain is broken.

金属链条闪闪发光。

The metal ___chains gleam in the light.

这家连锁超市在全国有超过500家门店。

This supermarket ___chain has over 500 stores across the country.