英语语法分析

The mattress I'm now sleeping on is saggy.

我现在睡的床垫下陷了。

Daisy: Will you still love me when my skin grows old and saggy?

黛西：当我的皮肤老化松弛时你还会爱我吗？

Collagen breakdown, which starts speeding up significantly around the age of 35, can leave your skin saggy.

35岁以后，胶原蛋白的分解大大加速，导致皮肤松懈。