speed bump
柯林斯词典
1. N-COUNT A speed bump is something that stops a person or thing from progressing. 制约(人或事)发展的障碍
It was little more than a speed bump – a minor distraction during my day. 那只不过是个小挫折——我一天中无足轻重的小烦恼。
2. N-COUNT A speed bump is a raised part in a road that is designed to make the traffic travel more slowly. (横置马路上用于防止车辆行驶过快的)路面减速装置
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