burglar alarm
US /ˈbɜːr.ɡlər əˌlɑːrm/
UK /ˈbɜːr.ɡlər əˌlɑːrm/
1.
防盜警報器, 防盜報警器
a device that makes a loud noise to warn people that a crime is happening or has happened
:
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The burglar alarm went off when a cat jumped through the window.
一隻貓跳窗而入時，防盜警報器響了。
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We need to install a new burglar alarm system for better security.
我們需要安裝一個新的防盜警報器系統以提高安全性。