investigate

The state police are investigating the incident..州警察正调查此事。

The study investigates the impact of violent TV programming on children..该研究调查暴力电视节目对儿童的影响。

I heard a noise and went downstairs to investigate..我听见响声，就下楼去看个究竟。

invest(投资) ＋ i ＋ gate(大门) → 想进入投资大门得先做市场调查 → 调查记忆

investigate into对……进行调查

真题例句...Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect...CET42017.12阅读理解

真题例句...Though it helps for children to investigate care facilities...第一套CET42016.6阅读理解