haveto和should的用法區別

You're going to have to learn to give and take.

你們必須學會互相遷就。

Now we have to try and sell the idea to management.

現在，我們必須設法説服管理層採納這個意見。

Ultimately, you'll have to make the decision yourself.

最終你還是得自己拿主意。

It's very important to me that you should be there.

你應該到場，這對我很重要。

By that time the new system should be up and running.

到那時這個新系統應該會運轉起來了。

Give me one good reason why I should help you.

我為什麼要幫你？給我一個充分的理由。