Underframing
底层框架的材料或结构部件
🗣️ 情景例句
Here.
来。
Would you please hold the door open for me?
请您为我打开门？
All the bees that had been at the distant feeding place were doing a completely different dance, a wagging dance.
所有在近处点的蜜蜂在跳一种完全不同的舞蹈，一种摇摆舞。