听取: to hear (news), to listen to...
界限: boundary...
强化: to strengthen, to intensify...
慌: to get panicky, to lose one's head, (coll.) (after ) unbearably, terribly...
精力: energy...
体系: system, setup...
叫板: to signal the musicians (in Chinese opera, by prolonging a spoken word before attacking a song), (coll.) to challenge...
胡思乱想: to indulge in flights of fancy (idiom), to let one's imagination run wild...
动静: (detectable) movement, (sign of) activity, movement and stillness...
电铃: electric bell...
