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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 mall's packed today.
今天商场里的人很多。
If you're hungry, we can eat dinner now.
如果你饿了，我们现在就去吃饭。
So she was first in the queue. She sat nearest to the doctor's door.
所以她第1个排队。她坐的位子靠医生的门口最近。