For example, it has taken so far the OECD 10 years to devise a battery of tests that they could recommend for systematic testing of chemicals for developmental neurotoxicity.

例如，到目前为止，OECD 花了 10 年的时间才设计出一系列测试， 他们可以推荐这些测试用于对化学品的发育神经毒性进行系统测试。