关键 是 吃 干净
guan1jian4 shi4 chi1 gan1jing4
n v:cop v adj
关键 是 吃 干净 .
k w a ˥ n tɕ j ɛ ˥˩ n WORD_BOUNDARY ʂ ɻ̩ ˥˩ WORD_BOUNDARY ʈʂʰ ɻ̩ ˥ WORD_BOUNDARY k a ˥ n tɕ i ˥˩ ŋ WORD_BOUNDARY 
关 键 WORD_BOUNDARY 是 WORD_BOUNDARY 吃 WORD_BOUNDARY 干 净 WORD_BOUNDARY