and there's not every material you could pick would have that property.

不是随便哪个材料都能做到这一点
It's - a suture or a stitch has to hold the wound closed

能够拉紧切口的缝合线
so it has to have certain mechanical strength

就必须具有一定的机械张力
and imagine the problem of making something

大家想像一下制造这种缝合线的难度
that's dissolvable so it disappears but also

身体组织不仅要能吸收这种缝合线
is strong enough to hold a wound closed reliably

而且这种线必须有足够的张力
for a length of time.

一定时间内能够拉紧切口
Others?

还有吗
Arthroscopic surgery - what are you thinking about there?

关节镜手术你是怎么想的
Yeah, so you're thinking about

对你是指
the instruments that they use in arthroscopic surgery,

关节镜手术中的使用的设备
arthro means 'joint',

arthro意思是关节