chokepoint什么意思解释？

The bridge is always a chokepoint at rush hour.在上下班的交通高峰期,这座桥总是个交通阻塞点....

chokepoint的音标：chokepoint的英式发音音标为：[t'ʃəʊkpɔɪnt]chokepoint的美式发音音标为：[t'ʃoʊkpɔɪnt]...