New Words：

grasp [grɑ:sp]
v.抓住；理解；领会；抓紧
n.紧抓；紧握；控制；领会

Sample Sentences：

The little girl grasped her mother's arm.
Grasp my hand and I'll pull you over the wall.

They have a good grasp of foreign languages.
He let the ball slip through his grasp and into the net.

slip [slip] v. 溜；滑倒；滑脱；溜走

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