下(xià )午,我(wǒ )参加了一场(chǎng )义工活(huó )动,为当地的老人们(men )提(tí )供帮助(zhù )和服(fú )务(wù )。帮助他(tā )们(men )解(jiě )决了一些难(nán )题和(hé )困难(nán ),让我感到(dào )非(fēi )常(cháng )充实(shí )和有(yǒu )意(yì )义(yì )。一部好(hǎo )的(de )悬疑电影是如何(hé )营(yíng )造出(chū )紧张(zhāng )刺激的氛(fēn )围,从而让观(guān )众陷入其中(zhōng )的呢?答案(àn )就是(shì )场景(jǐng )设计和音效(xiào )的精妙(miào )运用。有时候,甚(shèn )至(zhì )比(bǐ )剧(jù )情更(gèng )加(jiā )关键的是氛(fēn )围的营(yíng )造。