请输入您要查询的英文单词:
单词
a hard nut to crack
释义
a hard nut to crack
a.
a person not easily persuaded or won over
b.
a thing not easily understood
See full dictionary entry for
hard
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castle in the air
castle nut
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cast-off
cast on
cast one's bread upon the waters
castor
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castor bean
castoreum
castor oil
castor-oil plant
castor sugar
castor sugar
castory
cast out
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castrametation
castrate
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castrater
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更新时间:2026/4/5 10:54:03