In big cities you hear police sirens all the time.

在大城市里老是能听到警笛声。

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The spider jumped and it killed Mister, as the police sirens could be heard in the distance.

蜘蛛扑到先生身上杀了他，此时远处传来了警笛声。

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With the sound of police sirens approaching, I left Miles standing in the alley and went home.

随着警笛声越来远近，我离开了站在胡同里的Miles，回了家。

youdao

As he spoke, police sirens arrived on the scene, and the man broke off the phone call.

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"This could be Trayvon, " the hoodie-clad mother said, nodding to her son as the wail of police sirens tore through the night air.

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Well, inside five minutes 6 police cars arrive, sirens wailing and blue lights flashing and an armed response team crash through the front door-to find our burglar, safe and sound, who they duly arrest.

BBC: NEWS | UK | UK Politics | David Davis speech in full