英语语法分析

That is nonnegotiable in physics.

这在物理里是确定的。

A person's duty to serve the best interest of his nation is nonnegotiable.

一个人的责任去为他的国家服务是不可商榷的。

That momentum must be in the wall — it's nonnegotiable, because momentum must be conserved.

那么墙壁也定有动量-，这是毫无疑问的，因为动量是守恒的。