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abbr.
KK: [æd] DJ: [æd]
n.
以上來源於:《英漢大辭典》
以上來源於:《簡明牛津英語詞典》
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單選題
The rainfall in that dry region is not ________ for irrigation, so the residents have constantly been suffering from crop failure.
(A) numerous
(B) efficient
(C) adequate
(D) sufficiency
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