1. I have no choice but to fire you.
我别无选择，只好解雇你。
还能这样说：
I'm going to have to let you go.
I'm afraid I have to fire you.
谚语：
A burden of one's choice is not felt.
爱挑的担子不嫌重。

2. You are fired.
你被解雇了。
还能这样说：
You're dismissed.
You got the boot.
应用解析：
fires of heaven 星星；
fire at 对……开枪，向……射击

3. Company has to lay off some staff.
公司必须裁减一些员工。
还能这样说：
We have to cut down some staff.
We have to lay off some staff.

4. Your work failed to meet our requirement for employees.
你的工作达不到我们对雇员工作质量的要求。
还能这样说：
Your work is unattainable to our requirements.
Your work is far away to meet the quality that we require from our employees.
应用解析：
meet sb.'s eye 与某人目光相遇；
meet with sth. 遇到某事物；经历某事物