为此我设了一个最后期限，但协会不得不延长这一限期。
I had a deadline for that but the Association had to extend it.
慢阻肺病无法治愈，但通过治疗可以延长病人的生命。
COPD is not curable but treatment can extend a patient's life.
但时间延长到一定程度，发泡塑料密度变化不大。
But the time extending enough, the density of sheet has small changes.
但时间延长到一定程度，发泡塑料密度变化不大。
But the time extending enough, the density of sheet has small changes.
应用推荐