warn sb. ofabout sth：就（啥啥事儿）而警告谁谁谁；warn sb (not) to do sth：是“警告谁谁谁不要做啥啥啥”；warn sb. + that 从句：意为“警告某人。warn的用法？更多详情请大家跟着小编一起来看看吧！
warn的用法(1)
warn sb. ofabout sth：就（啥啥事儿）而警告谁谁谁；
warn sb (not) to do sth：是“警告谁谁谁不要做啥啥啥”；
warn sb. + that 从句：意为“警告某人说……（说的话）”。
warn的用法(2)
warned,warn.ing,warns
v.tr.（及物动词）
To make aware in advance of actual or potential harm, danger, or evil.
警告：在真实或可能的危害、危险或邪恶到来之前使知晓
To admonish as to action or manners.
告诫：对行为或礼节等的告诫
To notify (a person) to go or stay away:
通知（某人）离开或呆在一旁：
warned them off the posted property.
通知他们不要去碰登记过的财产
To notify or apprise in advance:
预告：预先通知或告诉：
They called and warned me that they might be delayed.
他们打来电话，预先告诉我他们可能耽搁一会儿
v.intr.（不及物动词）
To give a warning.
发出警告
