单词	閉元音
释义	閉元音 BìYuánYīnclose vowel简体闭元音
随便看	period of cycle Period of cycle of steady motion period of decay period of decline period of declining growth period of deformation period of delay period of delivery period of democratic revolution period of destruction period of development period of developmental transformation period of diastrophism period of digestion period of dilation Period of dipping and heaving period of disability period of disease period of distribution period of dividend period of division period of dna synthesis in the cell cycle period of dormancy period of double support period of dromancy