罕见hǎn jiàn
rare, rarely seen美妙měi miào
beautiful, wonderful, splendid翻fān
to turn over, to flip over考察kǎo chá
to inspect, to observe and study聚精会神jù jīng huì shén
to concentrate one's attention (idiom)肆无忌惮sì wú jì dàn
absolutely unrestrained, unbridled背诵bèi sòng
recite, repeat from memory腐朽fǔ xiǔ
rotten, decayed, decadent, degenerate