picroerythrin

例句：

1. 1. The chemistry of this compound is not well understood.
   这种化合物的化学性质尚未完全理解。
2. 2. This method has been proven to be effective in many cases.
   这种方法已被证明在许多情况下是有效的。
3. 3. The scientist's research has led to new discoveries in the field.
   这位科学家的研究导致了该领域新的发现。