第Day 天
声调速览Tones 101
拼音模式会在音节旁显示一声平、二声升、三声降升、四声降的声调轮廓。In Pinyin mode, each syllable can show the tone contour: first level, second rising, third dipping, and fourth falling.
拼音模式会在音节旁显示一声平、二声升、三声降升、四声降的声调轮廓。In Pinyin mode, each syllable can show the tone contour: first level, second rising, third dipping, and fourth falling.