Please answer my question seriously, thanks.

来源：百度知道 编辑：UC知道 时间：2024/06/21 18:58:41
But, now that I am looking down the barrel of my 64th birthday, I see that my employer benefited too much.

Q:What is the meaning of "look down the barrel of" ??I can't understand precisely.
And I want to know the meaning of "defined-benefit plan". I just know about"defined contribution plan/scheme".

但是，现在，我往下看枪管我的第64岁生日时，我看到我的雇主受惠太多。

问：是什么意思“看不起桶” ？ ？我实在不明白，正是。
和我想知道何谓“确定给付计划” 。我只知道“界定供款计划/计划” 。