The government illegally eavesdropped on his telephone conversations.

政府非法窃听了他在电话里的通话。

《柯林斯英汉双解大词典》

He eavesdropped on our conversation.

偷听了我们的谈话。

youdao

The housemaid eavesdropped from behind the kitchen door.

女佣在厨房门后偷听。

youdao

Storytelling is something he learned when he was young. "Gathering the children and sitting around the campfire, you would kind of pick them up as you eavesdropped on the older folks.

VOA: standard.2009.12.11

They would write notes to me because they were afraid of being eavesdropped on.

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In a jailhouse phone call with CNN, Russ hinted he'd eavesdropped on other inmates.

CNN: Inmate says he has clues about missing woman

In that year, Mr. Allen says he eavesdropped on a discussion in the Microsoft offices in Bellevue, Wash.

WSJ: Microsoft Co-Founder Hits Out at Gates