At 75, she's still ramrod straight.

她75岁了，腰板却仍然笔直。

I don't have the ramrod posture I had when I was in the navy.

我现在没有当海军时那样笔直的身姿了。

The soldiers stood at ramrod attention.

士兵们笔直地立正。

And the soldier, turning the ramrod, glanced gloomily at Pierre.

那个士兵转动着通条，冷冷地向皮埃尔瞥了一眼。

We're not talking ramrod posture, but show some energy and enthusiasm.

我们不是在说象枪杆一样的姿势，但是拿出点精神和热情。