Gum base is made mostly of synthetic chemicals, and these chemicals give gum its chewy property.

胶剂大多是合成化学品，这些化学物质让橡胶易于咀嚼。

youdao

Gum base is made mostly of synthetic chemicals, and these chemicals give gum its chewy property.

胶剂大多是合成化学品，这些化学物质让橡胶易于咀嚼。

youdao