1.We've got to get up early, all right?我們得早起床，可以吧？

2.There is no need for you to get up early tomorrow.你明天不必早起。

3.She finds it very difficult to get up early.她覺得很難早起。

4.Not having to get up early is just one of the perks of being retired.不必早起只是退休生活的好處之一。

意思是早起，已經有一個副詞early早地，後面不加成分，加上句號或者逗號

"Get up"後面接時間時通常使用介詞"at"。例如：

- I get up at 7 o'clock.

- She gets up at 6:30 in the morning.

這裡的"at"表示具體的時刻或時間點。當然，在某些特殊情況下，也可以使用其他介詞或短語來表達更具體的含義，比如"get up in the morning"（早上起床）、"get up on Monday"（星期一起床）等。但在一般情況下，使用"get up at" + 具體時間是最常見和常規的用法。

1.I generally get up at six.

我一般六點鐘起床。

3.I had to get up at seven o'clock this morning to let them into the building because they had lost their keys

今天早上我不得不7點鐘就起床開門讓他們進樓，因為他們把鑰匙弄丟了。