6 sentences

1. 铜和银都是金属。

   tóng hé yín dōu shì jīn​shǔ.

   Copper and silver are both metals.

   Source: Tatoeba

2. 智利是世界最大的产铜国。

   Zhì​lì shì shì​jiè zuì dà de chǎn tóng guó.

   Chile is the world's largest copper producer.

   Source: OpenSubtitles

3. 奶奶珍藏着一个铜做的老式暖手炉。

   nǎi​nai zhēn​cáng zhe yī gè tóng zuò de lǎo​shì nuǎn​shǒu​lú.

   Grandma cherishes an old-fashioned copper hand warmer.

   Source: Dong Chinese Dictionary

4. 这些破旧的铜钱都被收回去销了重铸。

   zhè​xiē pò​jiù de tóng qián dōu bèi shōu huí​qu xiāo le chóng​zhù.

   These worn-out copper coins were all collected to be melted down and recast.

   Source: Dong Chinese Dictionary

5. 那个行脚僧手里托着一个化缘用的铜钵。

   nà​gè xíng​jiǎo​sēng shǒu lǐ tuō zhe yī gè huà​yuán yòng de tóng bō.

   The wandering monk held a bronze alms bowl in his hand.

   Source: Dong Chinese Dictionary

6. 这家工厂专门负责回收铜、铝等各种有色金属。

   zhè jiā gōng​chǎng zhuān​mén fù​zé huí​shōu tóng, lǚ děng gè zhǒng yǒu​sè​jīn​shǔ.

   This factory specializes in recycling various non-ferrous metals such as copper and aluminum.

   Source: Dong Chinese Dictionary