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n. (检测路面平坦程度等的)路面情况指示器
🗣️ 情景例句
The annual school sports meet is held in March.
每年一次校运会在三月份举行。
Misfortunes come at night.
灾祸常生于不测。
The trainer stands in front of the elephant holding a long stick with a sharp metal point.
驯练员手持一根有锋利金属尖头的长棒，站在象前。