Flexiback
软背, 软脊(装帧)
🗣️ 情景例句
Stay right where you are.
站住别动！
We have asked you to come to our Thank you Party today.
我们邀请你们参加我们今天的“感恩会”。
Other types of bee make their nests in holes in the ground.
其他种类的蜂在地穴里筑巢。