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listening in的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
動詞 listen in:
-
listen quietly, without contributing to the conversation
-
listen without the speaker's knowledge
listening in的用法和樣例：
例句
- He is just listening in external of that room.
他正在那房間的外面留神聽著。 - He is listening in to Radio Beijing.
他正在收聽北京廣播電台的廣播。
