Flexiback
软背, 软脊(装帧)
🗣️ 情景例句
The bad news is, you won't be able to adopt the dog.
坏消息是你不能收养那只狗了。
The spirit is willing but the flesh is weak.
心有馀而力不足。
Of all the planets in our own solar system,
在我们太阳系的所有行星中，