Barrier Bar

中文含义：路障杆，限制杆

英语词性：noun

美式发音：ˈbæriər bɑr

同义词：boom barrier, gate arm

易混淆单词：barrier, bar

双语例句：

1. Make sure to lower the barrier bar before entering the parking lot.
2. Before the train passed, the barrier bar was down to stop any cars or pedestrians from crossing.
3. The gate arm of the garage had broken, causing the barrier bar to remain closed.
4. If the barrier bar is not functioning properly, it must be repaired promptly.