pre = before 前
prevent (v.) 防止
1. preclude (v.) 排除...的可能
- The approaching typhoon precludes any chance of a ball game tomorrow.
2. prescience (n)未卜先知
- The investor demonstrated remarkable prescience by selling his stocks before the market crashed.
3. presentiment (n.) 预感
- The man had a presentiment that something might go wrong, so he chose not to board the plane.
4. unprecedented ](a.)史无前例的
- The president's proposal to visit Mainland China was unprecedented.