精益求精 的释义 | Babel Free
t͡ɕiŋ⁵⁵ i⁵¹ t͡ɕʰi̯oʊ̯³⁵ t͡ɕiŋ⁵⁵CEFR 等级
B1
中级
该词属于CEFR B1词汇——中级水平。
该词属于CEFR B1词汇——中级水平。
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