seize (sb/sth) firmly with hand, etc.; take advantage of (sth)
understand (sth) fully
"he has a good grasp of accounting practices"
"within the compass of education"
"a good grip on French history"
"they kept a firm grip on the two top priorities"
"he was in the grip of a powerful emotion"
"a terrible power had her in its grasp"
"he released his clasp on my arm"
"he has a strong grip for an old man"
"she kept a firm hold on the railing"
"Do you comprehend the meaning of this letter?"
By grasping at too much, the government would lose all.
出自： Ld Macaulay