It is thought that they receive more exposure to pesticides during the first few months of pregnancy - a critical time for brain development.

据认为，这是因为这些小孩在孕期的头几个月接触更多的杀虫剂所致，而这几个月正是大脑发育的关键时期。

youdao

Their bodies are rapidly growing and developing, so exposure to harmful chemicals can cause maximum damage at this critical time.

由于他们正处于身体发育的快速成长期，在这样的关键时期，有害的化学物品更会对他们造成无法挽回的伤害。

youdao

Their bodies are rapidly growing and developing, so exposure to harmful chemicals can cause maximum damage at this critical time.

由于他们正处于身体发育的快速成长期，在这样的关键时期，有害的化学物品更会对他们造成无法挽回的伤害。

youdao