Meaning of hard as Chinese algebra | Babel Free
Definitions
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Very difficult. humorous, not-comparable
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Very hard in texture, especially: having a very firm erection. humorous, not-comparable
CEFR level
C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
This word is part of the CEFR C2 vocabulary — mastery level.