Go to a place where there are a lot of people and eavesdrop on a conversation.

去一个有很多人的地方，偷听一段谈话。

Today, as I was relaxing at the beach, I couldn’t help but eavesdrop on a conversation four high school kids we having on the beach blanket next to me.

今天我人虽在沙滩上放松，但却忍不住探听起旁边四个中学生的谈话。

So instead of giving the Gladiator his undivided attention, Jack had slipped away to eavesdrop on a conversation that was in progress at one of the forward command posts.

所以杰克没有把他的注意力都集中在角斗士机器人身上，而是偷偷地移动到一旁去偷听在一间前线指挥所里进行的对话。