2 文書を見つけるための辞書。

• heads-up
• 注意喚起
• a warning message; "he sent a heads-up to the District Attorney"
• 警告メッセージ

• heads-up, wide-awake
• 注意喚起
• fully alert and watchful; "played heads-up ball"
• 完全に機敏で注意深い