2 sentences

1. 钻石首先在哪里找到？

   zuàn​shí shǒu​xiān zài nǎ​li zhǎo dào?

   Where were diamonds first found?

   Source: CCMatrix

2. 当钻石首先在巴西被发现的时候，没有人知道它们是钻石。

   dāng zuàn​shí shǒu​xiān zài bā​xī bèi fā​xiàn de​shí​hou, méi​yǒu rén zhī​dao tā​men shì zuàn​shí.

   When diamonds were first discovered in Brazil, nobody knew that they were diamonds.

   Source: CCMatrix