Bronze is an alloy of copper and tin.

青铜是一种铜锡合金。

《柯林斯英汉双解大词典》

It is an alloy of tin (93 percent), antimony (5 percent), and copper (2 percent). It's known for its smooth texture and silvery appearance.

是由93%的锡，5%的锑和2%的铜组成的一种合金材料，因其平滑纹理和银色外观而闻名。

youdao

Tin is important as it imparts an improved "fluidity" to the molten alloy and helps in mold filling.

加锡是很重要的，因为它可以改进熔融合金的流动性，从而使其易于注入模具。

youdao

They are toughened with diamond-like carbon from the semiconductor industry and this is bonded on to the steel with niobium, a rare tin alloy normally used in superconducting magnets.

ECONOMIST: Skinned alive

The spheres are then dissolved to leave a 3D-metal scaffold onto which a nickel-tin alloy is added to form the anode, and a mineral called manganese oxyhydroxide to form the cathode.

BBC: Super-powered battery breakthrough claimed by US team

Many French horns, for example, are made of nickel silver, an alloy of copper, zinc, and nickel (it's silver in name and color only), and some are made of nickel bronze, an alloy of copper, tin, and nickel. (Brass itself is an alloy of copper and zinc.) Many brass instruments are silver-plated (sterling silver on brass), and some are gold-plated.

NPR: Young Tuba Player Gets Nod from Phila. Orchestra