warn基本解释

vt,警告，提醒；通知,同近

‘Be careful, the rocks are slippery,’ Alex warned..“小心，岩石很滑。”亚历克斯提醒说。

警告，提醒；通知英释vvto tell someone that something bad or dangerous may happen, so that they can avoid it or prevent it

warn of,警告某人某事.短语