because 因为 由于
We are experiencing a slight delay becase of the weather.
因为天气的关系，我们会稍稍耽搁一。
Knowledge smiled with deep wisdom and answered," Becaseonly Time can understand hou valuable Love is. "
知识笑笑说：“因为只有时间知道爱有多重要！”
一、lm dont happy becase 的意思是：我不高兴，因为.....，我不快乐，因为......。
二、because相关例句：
An argument was inevitable because they disliked each other so much.争论是不可避免的，因为他们彼此非常厌恶。
I knew she was joking because she had a big grin on her face.我知道她是在开玩笑，因为她脸上堆满笑容。
Many beautiful fish are fast disappearing because of the severe pollution.因为污染严重，许多美丽的鱼类正在面临绝种。
The player defaulted in the tournament because of her injury.在这次循环赛中,这位运动员由于受伤而弃权。