我曾一直以为自己是个坚强能干的女人。

I had always considered myself a strong, competent woman.

《柯林斯英汉双解大词典》

我从没整过容，虽然人们一直以为我做过鼻子整形术。

I've never had plastic surgery, though people always think I've had a nose job.

《柯林斯英汉双解大词典》

澳大利亚的研究人员一直在设计并测试一种能骗过狮子的方法，即在牛屁股上画眼睛，让狮子以为自己正被猎物注视着。

Researchers in Australia have been devising and testing a method of trickery to make lions think they are being watched by the painted eyes on cow butts.

youdao

You were smart and adorable and all this time I assumed you were dumb and adorable.

你很聪明，而且很可爱,这么久了我竟然一直以为你可爱但只是不会说话呢“

哈佛公开课 - 计算机科学课程节选

I thought university was going to be a lot easier than it is.

我一直以为大学的学习会比较容易。

I think 实战 - SpeakingMax英语口语达人

The next day in class, I used that and I said to the students, "You know, the last thing in the world that I want you to think is that I experience a constant high or that you, by the end of the semester or the year-- it was a year course, you-- by the end of the year-- " will experience a constant high."

第二天上课时，我讲了这件事并对学生说，“我最不希望你们以为,我总是保持快乐，或者你们，在期未或学年未-,那门课程要讲一年，你们到学年未时-,会一直保持快乐“

哈佛公开课 - 幸福课课程节选