syntropic（adj.） 英 [sɪnt'rɒpɪk] 美 [sɪnt'rɒpɪk] "turning in the same direction," 1870, from syn- "with, together" + ending from heliotropic, etc., ultimately from Greek tropos "a turn, change" (from PIE root *trep- "to turn").该词起源时间：1870年
