snag
- 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
英英释意
- 1. a sharp protuberance
- 2. a dead tree that is still standing, usually in an undisturbed forest;
- "a snag can provide food and a habitat for insects and birds"
- 3. an opening made forcibly as by pulling apart;
- "there was a rip in his pants"
- "she had snags in her stockings"
- 4. an unforeseen obstacle