keyon Basic wordsalso onCEFR Beginners (A1)? CEFR Elementary (A2)? CEFR Intermediate (B1)? CEFR Upper intermediate (B2)? Band 1 (BND1)? Band 2 (BND2)? Band 3 (BND3)? 主要的,关键的, 关键,线索,钥匙,键 key key(adjective) 主要的,关键的 keys keys(noun) 钥匙,键,题解,(乐曲的)调(key的名词复数) key key(noun) 关键,线索,钥匙,键 Forms adjectivenoun key keys key