| 单词 | 警报解除 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔all clear〕Listen for the all clear before each transfer.每次转移前注意听警报解除信号。外研社新世纪〔sounding〕There were 15 minutes between the first air raid alert and the sounding of the all-clear signal.第一次空袭警报和空袭警报解除信号之间间隔了 15 分钟。柯林斯高阶 |
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