WORD BY WORD
tonic
英/tˈɒnɪk/
美/ˈtɑnɪk/
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01n.
补药, (音乐)主调音或基音
lime- or lemon-flavored carbonated water containing quinine; (music) the first note of a diatonic scale; a medicine that strengthens and invigorates
02adj.
滋补的, 声调的, 使精神振作的
of or relating to or producing normal tone or tonus in muscles or tissue