Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford American Dictionary

   intruder alarm

   • n.
     an electronic device that emits a loud noise when someone attempts to gain unauthorized entry to a building or other premises

   • noun: intruder alarm, plural noun: intruder alarms

2. • 釋義

   n.

   名詞

   • 1. an electronic device that emits a loud noise when someone attempts to gain unauthorized entry to a building or other premises staff arrived to find an intruder alarm had been activated