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