时不时: from time to time...
降低: to reduce, to lower, to bring down...
成天: (coll.) all day long, all the time...
外界: the outside world, external...
扫兴: to have one's spirits dampened, to feel disappointed...
拯救: to save, to rescue...
友善: friendly...
禁区: restricted area, forbidden region...
画龙点睛: to paint a dragon and dot in the eyes (idiom); to add the vital finishing touch, the crucial point that brings the subject to life, a few words to clinch the point...
对策: countermeasure for dealing with a situation...