3 sentences

1. 一些鱼油可能被汞污染。

   yī​xiē yú​yóu kě​néng bèi gǒng wū​rǎn.

   Some fish oils may be contaminated with mercury.

   Source: CCMatrix

2. 孕妇应避免汞含量高的鱼类。

   yùn​fù yīng bì​miǎn gǒng hán​liàng gāo de yú​lèi.

   Pregnant women should avoid fish containing high levels of mercury.

   Source: CCMatrix

3. 好的选择包括鲑鱼和沙丁鱼，因为它们的汞含量也很低。

   hǎo​de xuǎn​zé bāo​kuò guī​yú hé shā​dīng​yú, yīn​wèi tā​men de gǒng hán​liàng yě hěn dī.

   Good choices include salmon and sardines, since they're also low in mercury.

   Source: CCMatrix