4 sentences

1. 中医讲究阴阳平衡。

   zhōng​yī jiǎng​jiu yīn​yáng píng​héng.

   Traditional Chinese medicine emphasizes the balance of Yin and Yang.

   Source: Dong Chinese Dictionary

2. 炼丹师在鼎炉中加入婴儿与姹女，调和阴阳以求仙药。

   liàn​dān​shī zài dǐng​lú zhōng jiā​rù yīng'ér yǔ chà​nǚ, tiáo​hé yīn​yáng yǐ qiú xiān​yào.

   The alchemist added infants and young women to the cauldron, harmonizing Yin and Yang in pursuit of the elixir of immortality.

   Source: Dong Chinese Dictionary

3. 乾坤是中国传统文化中关于天地与阴阳的重要概念。

   qián kūn shì Zhōng​guó chuán​tǒng wén​huà zhōng guān​yú tiān​dì yǔ yīn​yáng de zhòng​yào gài​niàn.

   Qiankun is an important concept in traditional Chinese culture regarding heaven and earth, as well as yin and yang.

   Source: Dong Chinese Dictionary

4. 教授在课堂上深入浅出地讲解了太极阴阳转化的道理。

   jiào​shòu zài kè​táng shàng shēn​rù​qiǎn​chū de jiǎng​jiě le Tài​jí yīn​yáng zhuǎn​huà de dào​li.

   In class, the professor explained the principles of Yin and Yang transformation in Tai Chi in simple and accessible terms.

   Source: Dong Chinese Dictionary