Balkstone
含杂质的层状灰岩
🗣️ 情景例句
I'll miss my birthday party on Saturday.
就会错过星期六我的生日派对。
Open your eyes!
眼睛睁大点！
The wagging dance of the honey bee, therefore, did show the direction of a feeding place.
如果喂食地点背离太阳，摇摆舞的直线部分就朝下。因此，蜜蜂的摇摆舞的确表示喂食点的方向。