要叫人挪车，你需要提供他们的车牌号。以下是几种可能的表达方式：
1. \"请帮我联系车主，车牌号是XXX。\" （Please help me contact the owner, the license plate number is XXX.） 2. \"车主的车挡住了我的车，车牌号是XXX。\" （The owner\'s car is blocking mine, the license plate number is XXX.) 3. \"请告诉车主XXX，需要挪车。\" （Please tell the owner of XXX that they need to move their car.）