/grɑ:sp ||; græsp/noun [sing] [U]:
1 a firm hold of sb/sth 紧抓: Get a good grasp on the rope before pulling yourself up. 先紧紧抓住绳子，再往上爬。I grabbed the boy, but he slipped from my grasp. 我抓住那个男孩，可是他从我手里滑掉了。
2 a person's understanding of a subject or of difficult facts 理解力: He has a good grasp of English grammar. 他精通英语语法。
3 the ability to get or achieve sth 得到或达到…的能力: Finally their dream was within their grasp. 他们的梦想终于有可能实现了。