Critics believe his days are numbered because audiences are tired of watching him.是什么意思？

Critics believe his days are numbered because audiences are tired of watching him.

批评家猜想他走红的时间不会长了，因为观众现在厌倦了他的表演。

critics

n. 批评家( critic的名词复数 )，评论员，批评者，挑剔的人；

例句
Instead of beefing about what Mrs Martin has not done, her critics might take a look at what she is trying to do.
批评者不要老是抱怨马丁太太没有做什么事情，不妨看看她正要做什么事情。

believe

v. 信任，料想，笃信宗教；vt. 相信，以为，认为，对…信以为真，信任；

例句
Some parents believe a boy must learn to stand up and fight like a man.
有些父母认为男孩子必须学会像男子汉一样顶天立地，勇于抗争。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

days

n. 天，时期，一天( day的名词复数 )，白天，时期，工作日；adv. 每天，在白天；

例句
There's lots of money about these days for schemes like this.
近来这类计划资金充足。

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

numbered

adj. 有限的，时日无多的；v. 数，算( number的过去式和过去分词 )，给…编号，总共；

例句
They told me that their village numbered 100...
他们告诉我他们村子有100人。

because

conj. 因为；

例句
5,000 people die every year because of accidents in the home...
每年有5,000人死于家中的意外事故。

audiences

n. 观众，听众，读者( audience的名词复数 )；

例句
You don't need a Ph.D to decode their work, but they do try to challenge audiences with unconventional material.
解读他们的作品并不需要有博士学位，但他们的确在尝试用一些非传统素材来挑战观众的接受度。

tired

adj. 疲倦的，困倦的，对…不耐烦的，陈旧的；v. （使）疲劳（ tire的过去式和过去分词），对（做）某事感到厌倦；

例句
He's tired so I'll make allowances for him.
他很累，所以我会体谅他。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

watching

n. 观察，看守，注意，监视；

例句
He was standing a bit apart from the rest of us, watching us...
他站在离我们其余人不远的地方，看着我们。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。