- snag
 - [snæɡ]
 - n. 障碍;意外障碍;突出物
vt. 抓住机会;造成阻碍;清除障碍物
vi. 被绊住;形成障碍 
参考例子
           - 1.Change your socks; they were snagged.
 - 你的袜子挑丝了,换一双吧。
 
- 2.This enterprise, though, has already hit an embarrassing snag.
 - 然而,该计划已经遇到了令人尴尬的障碍。
 
- 3.The snag with this arithmetic is that it ignores the fact that many CDS contracts overlap or offset one another.
 - 这样计算的问题是它忽视了一个事实:许多CDS合约相互重叠或抵消了。
 
英文解释
           - n.
 - 1.a sharp protuberance
 - 2.a dead tree that is still standing, usually in an undisturbed forest
 - 3.an opening made forcibly as by pulling apart
 - 4.an unforeseen obstacle
 
- v.
 - 1.catch on a snag
 - 2.get by acting quickly and smartly
 - 3.hew jaggedly
 
网络释义
               - SNAG
 - 新好男人; 粗磨; 意外障碍; 残干;
 
- snag gritter
 - 铺砂机;
 
- snag problem
 - 障碍; 困难;
 
- snag boat
 - 清障船;
 
- snag hook
 - 吊重物活动大钩;