这个男孩不太高兴，因为他觉得自己没有朋友。

The boy was unhappy because he thought he was friendless.

《柯林斯英汉双解大词典》

因为他觉得那很无聊。

Because he thinks it's boring.

youdao

莫尔孤苦伶仃地伏在一个树桩上，竭力控制自己的情绪，因为他觉得它肯定会来的。

The Mole subsided forlornly on a tree-stump and tried to control himself, for he felt it surely coming.

youdao

He probably felt that nobody around was doing any work, because all the thing was given to this one person.

他或许会觉得周围的人都在尸位素餐,因为所有的问题都留给了他一个人

耶鲁公开课 - 基础物理课程节选

I think that Phillipe Blond is a very wonderful designer because he's extremely avant-garde in what he does.

我觉得Phillipe Blond是个很不错的设计师，因为他在这个领域特别前卫。

喜欢的设计师 - SpeakingMax英语口语达人

Because he thought that would be big enough that in Denmark, the temperature wouldn't go below zero.

因为他觉得这个数字,对于丹麦来说够大了，气温不会低到零度以下。

麻省理工公开课 - 热力学与动力学课程节选