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bond2
n.
以上來源於：《英漢大辭典》
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鍵 《藥學》
以上來源於：《國家教育研究院雙語詞彙辭典(英漢)》
單選題
With the close ________ of friendship, Sue and May were able to confront the difficulties together.
(A) fates
(B) duties
(C) vessels
(D) bonds
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