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0 New HSK word(s):
0 Old HSK word(s):
Grade E word(s):
不懈
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常备不懈
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坚持不懈
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Häufigkeit: 0.32
Komposita
Gb
Eng
Viet
人类与大自然进行不懈的斗争.
Man is engaged in a constant struggle with Nature.
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