21.8 should
和ought to-模样形状动词
21.8 should
和ought to
除了上述的用法，两者还可默示 "想必一定，按理应该"的意思。例如：
I ought to be able to live on my salary.靠我的薪水，想必也能维持了。
It ought to be ready now.想必现在准备好了吧。
They should be there by now, I think.现在他们该到那边了。
The poems should be out in a month at most.诗集估计最多另有一个月就要出版了。

关键字：w21.8螺纹 should it matter should cry on my should should have done