Have you heard about the plan to ban cars from the city centre?你听说要在市中心禁止汽车通行的计划了吗？

He's not in my circle, but I still hear about him.他不在我的交际圈子里, 但我还是能得知他的情况。

Did you hear about Sally's new baby?萨莉刚生了孩子, 你听说了吗？