touch on+◼◼◼verb[UK: tʌtʃ ɒn] [US: ˈtətʃ ɑːn]
touch (on or upon)+verb
touch (on)+verb
touch (upon)+verb
touch upon+◼◼◼verb[UK: tʌtʃ ə.ˈpɒn] [US: ˈtətʃ ə.ˈpɑːn]
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