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Use at least four different consonants in babbling or words, such asm, n, p, b, t, and d?
至少使用4种不同的声母呀呀或词,如米,氮,磷,硼,T和丁?。
youdao
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Use at least four different consonants in babbling or words, such asm, n, p, b, t, and d?
至少使用4种不同的声母呀呀或词,如米,氮,磷,硼,T和丁?。
youdao