beam

n.横梁；光线；容光焕发 v.放光；面露喜色

be very useful at, be willing to, be witness to, be worth doing, be-, beach, beach buggy, beach-ball, beach-head, beachcomber, beachwear, beacon, bead, beadle, beady, beagle, beagling, beak, beaked, beaker, beam-ends, bean, bean sprouts, beanfeast (also beano), beano, beanpole, bear, bear away, bear down, bear down on, bear down upon, bear in mind, bear off, bear on, bear out, bear sth. in mind, bear up, bear with, bear-hug, bear/keep in mind,