better作为形容词时，是指较好的、更好的、能力更强的、更熟练的、更合适的、更得体的等，better作为副词时，是指更好、更愉快、不那么差、更、较大程度地、更妥、更恰当等，better作为名词时，是指更好的事物、较好者、更有才智者、更主要的人等，better作为动词时，是指胜过、超过等。

We're hoping for better weather tomorrow.我们希望明天天气转好。Her work is getting better and better.她的工作干得越来越好了。He is in a much better mood than usual.他的情绪比平时好多了。

The meal couldn't have been better.这顿饭再好吃不过了。There's nothing better than a long soak in a hot bath.没有什么比好好地泡个热水澡更舒服的了。She's far better at science than her brother.她在理科方面比她的弟弟强得多。

If you can only exercise once a week,that's better than nothing.即便是一个星期锻炼一次，也比完全不锻炼好。She's a lot better today.她今天好多了。