Sonac
超声传感器
🗣️ 情景例句
Good. OK.
好的。
How is the weather today?
今天天气怎么样？
but when she got out at her own floor, both were forgotten in her sudden discovery that her front door was open.
但她到自己的楼层走出电梯后，就把这两件事忘了个干净，因为她突然发现她家的大门开着。