二苯基酮

例句：

1. 1. The compound was synthesized using a two-step process.
   该化合物通过两步合成得到。
2. 2. This drug is effective against the common cold.
   这种药物对普通感冒有效。
3. 3. The chemical structure of this compound has been thoroughly studied.
   这种化合物的化学结构已经彻底研究过。