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1·This was the real reason for her call.

这是她打电话的真实原因。《柯林斯英汉双解大词典》

2·As always, Peter had a reason for his action.

如往常一样，彼得对他的行为总有理由。《柯林斯英汉双解大词典》

3·I have no particular reason for doubting him.

我没有什么特别的理由怀疑他。《牛津词典》

4·I really don't see any reason for changing it.

我实在想不出有任何理由要改变它。《柯林斯英汉双解大词典》

5·My sole reason for coming here was to see you.

我到这儿唯一的原因就是来看你。《牛津词典》

6·There's no earthly reason for me to feel so blue.

我完全没有理由感到如此低落。《柯林斯英汉双解大词典》

7·The principal reason for my change of mind is this.

我改变主意的最重要原因就是这个。《柯林斯英汉双解大词典》

8·This result gives us all the more reason for optimism.

这个结果使我们更有理由保持乐观。《牛津词典》

9·The principal reason for this omission is lack of time.

跳过它的主要原因是时间不足。《牛津词典》

10·The reason for my visit had obviously slipped his mind.

我到访的原因显然被他忘了。《柯林斯英汉双解大词典》