job可数吗

例句：

He's trying to get a job .

他正在找工作。

She took a job as a waitress.

她找了个工作，当服务员。

I've got various jobs around the house to do.

我在家里有各种各样的活儿要干。

It's not my job to lock up!

上锁不是我的事儿！

It's real wood─not one of those plastic jobs.

这是实木的——不是那种塑料产品。