每日一句口语：
Being happy doesn't mean that everything is perfect. It means that you've decided to look beyond the imperfections.
快乐不代表每件事都完美，而是你已下定决心让眼界超越不完美。
【知识点讲解】
imperfection n.不完美； 缺点，瑕疵；
例句：A lattice vacancy is a simple example of an imperfection. 点阵空位就是不完美性的一个简单例子.
