释义 |
si.ren DEVICEH5saIE7rEn, $5saIr7Enn [C]a device for making a loud warning noise汽笛,警报器In big cities you hear police sirens all the time.在大城市里,你总能听到警笛声。The ship sounded its siren in the fog.轮船的汽笛在雾中响着。The siren went off in the middle of the night to warn that there was going to be an air attack.警报器在半夜响起,警告人们将有空袭。
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