主要原因是，预算被意外削减了三分之一。
The main reason is that the budget was unexpectedly cut by a third.
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the英 /ðə/|美 /ðə/|英 /ðiː/|美 /ði/
main英 /meɪn/|美 /meɪn/
reason英 /ˈriːzən/|美 /ˈrizən/
is英 /ɪz/|美 /ɪz/
that英 /ðæt/|美 /ðæt/
解释
The + 形容词 + reason + is (that) 用于引出某个情况最重要的原因，将原因作为信息的焦点前置。与 because 从句相比，这种结构更具正式感和强调效果。
The main reason is that the budget was unexpectedly cut by a third.
The + 形容词 + reason + is (that) 用于引出某个情况最重要的原因，将原因作为信息的焦点前置。与 because 从句相比，这种结构更具正式感和强调效果。