“Cats never fail to fascinate human beings”这句话中的“beings”起什么作用?在这句话中如果把beings去掉，

这句算现在完成时吗,那算什么时呢cats never fail to fascinate human beings 现在完成时 never fail to do cats never fail to fascinate human beings这里面最后面的beings 怎么解释,不加可以吗. never been afraid to fail you never fail to fascinate “Cats never fail to fascinate human beings”这句话中的“beings”起什么作用?在这句话中如果把beings去掉， never fail to seize the day中fail是什么意思 Never fail to seize the day翻译下是什麽意思 never fail to seize the day but dont give myself we will never fail fail to never fail to do 与must比较谁更委婉有个句子：you never fail to study hard语气和must比较谁更委婉 Happiness will never come to those who fail to appreciate what they already have. never fail to 和never fails to的区别在哪里 能给个句子做例子吗? Never fail to seize the day的中文及音标单元音：[i:] [i] [e] [ Never fail to seize the day But dont give yourself away 翻成中文是什么意思 Never giving up when you fail to do it.我这样说格式多吗? 请问除了never,fail to以外,还有哪些词可以替换掉not?各