1.To some extent, these collaborative approach is reasonable. However, obvious deficiency also exits, the progress is not very remarkable.
这些协作方式虽有一定的合理性，但也明显存在缺陷和不足，故，进展并不十分显著。
2.Yes, it is expired by ten days. However, i believe you can repair it for free, because i found obvious deficiency when i bought it.
是的，十天前到期的，但是我相信你会免费修理，因为这个机器在我买的时候就有明显的缺陷。