送交者: whoami 于 2012-10-04, 14:57:26:

回答: 声母韵母 combine forming 声调. 由 steven 于 2012-10-04, 13:50:05:

• 现代汉语拼音 did not specify timing, but it is there. - steven (111 bytes) 2012-10-04, 16:06:09 (686762)

加跟贴