The father warned his son of fire.

父亲提醒儿子注意火。

youdao

Father warned me never to drive after drinking.

父亲警告我不要酒后开车。

youdao

His father warned him not to sell short in these days when prices are rising.

他父亲警告他这些日子价格一直上涨，不要卖空。

youdao

His father warned the doorman at the theater not to let Paul into the place.

VOA: special.2009.04.04

The father warned Icarus not to fly too close to the sun.

CNN: My Father's Day wish: Curious children

An FBI official said AbdulMutallab was included in TIDE after his father warned the U.S. Embassy in Nigeria of his son's hard-line beliefs and possible ties to militant Islamists.

CNN: Air terror suspect was in database, not watch list

An FBI official said AbdulMutallab was included in the U.S. government's Terrorist Identities Datamart Environment, or TIDE, after his father warned the U.S. Embassy in Nigeria of his son's hard-line beliefs and possible ties to militant Islamists.

CNN: Online poster appears to be Christmas Day bomb suspect