窗口將在 5秒后自動關閉.
a.
同義參見:
以上來源於：《英漢大辭典》
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文法測驗
Sue spent a lot of time writing this essay, but it all _____ when she got a good grade.
(A) back off
(B) paid off
(C) took off
(D) tore off
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