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alert
01
観察力のある
able to notice things or think quickly
02
警告
engaged in or accustomed to close observation
03
警告
quick and energetic
to alert
01
誰かに警告する
to warn someone of a possible danger, problem, or situation that requires their attention
Alert
01
警報
a warning about a danger, problem, or threat
02
警報
an automatic signal (usually a sound) warning of danger
03
待機中（潜在的な危険のため）
a situation where people are ready to confront a threat
例
The detective's alert mind quickly pieced together the clues to solve the mystery.
The alert security guard spotted the intruder before they could enter the building.
The alert hiker noticed the subtle changes in the weather and decided to head back before the storm hit.
She remained alert during the meeting, ready to contribute valuable insights at any moment.
Stay alert and be ready to engage.
