presynthetic gap1 period

例句：

1. 1.The researchers have developed a presynthetic model to simulate the human brain.
   研究人员已经开发出一个预合成模型来模拟人类大脑。
2. 2.The company has launched a presynthetic version of its new product.
   该公司已经推出了新产品的预合成版本。
3. 3. In presynthetic biology, scientists are able to manipulate genes before they are expressed in cells.
   在预合成生物学中，科学家能够在基因表达之前对其进行操纵。