warn

warn vt.

警告, 注意, 通知

vi.

發出警告, 發出預告

英英解釋: 動詞warn:
1. notify of danger, potential harm, or risk
2. admonish or counsel in terms of someone's behavior
同義詞：discourage, admonish, monish
3. ask to go away
4. notify, usually in advance