抓住,理解
Prehension \Pre*hen"sion\, n. [L. prehensio; cf. F.
pr['e]hension. See {Prehensile}.]
The act of taking hold, seizing, or grasping, as with the
hand or other member.
prehension
n : the act of gripping something firmly with the hands [syn: {grasping},
{taking hold}, {seizing}]