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1·I've seldom felt so happy.

我很少感到过这么快乐了。《柯林斯英汉双解大词典》

2·Wow! So many gifts! I am so happy!

哇！这么多的礼物！我太高兴了！

3·He has never felt so happy as with you and Heidi.

他从来没有像跟你和海蒂在一起这么开心过。

4·She was so happy that she scarcely dared to breathe.

她高兴得几乎不敢呼吸。

5·Never so happy as when I've got both arms in the wash-tub.

当我把两只胳膊都泡在洗衣盆里时，我是最高兴不过了。

6·He felt so happy that he tried his best to cry out, Oh, my Fairy!

他感到很高兴，尽力叫道：“噢，我的仙女！”

7·This is the best thing you've ever done – I am so happy for you!

这是你做过的最好的事–我真为你高兴！《柯林斯英汉双解大词典》

8·You seem so happy at your work.

你似乎对你的工作很满意。

9·The kids were so happy.

孩子们非常高兴。

10·Stan's wife was so happy.

斯坦的妻子非常高兴。