2 sentences

1. 你有黑头和白头。

   nǐ yǒu hēi​tou hé bái​tóu.

   You have blackheads and whiteheads.

   Source: AI Challenger 2017

2. 大多数丘疹和黑头都是无害的。

   dà​duō​shù qiū​zhěn hé hēi​tou dōu shì wú hài de.

   Most pimples and blackheads are harmless.

   Source: CCMatrix