I don't know you are here.

我不知道你在这儿。

I didn't know you are here.

我不知道你在这里。

Here we are, you and I.

我们在这里你和我

I am here ,Where are you?

我在这里，你在哪？

Here you are," he said,"I've found it.

在这里，您是，"他说："我已经发现它。

Here you are：给你

65. He is my age. 他和我同岁. | 66. Here you are. 给你. | 67. No one knows . 没有人知道.

Here you are：给

523. Sorry, we only take cash. 对不起,我们只收现金. | 524. Here you are. 给. | 525. Here is your change. 找您的钱.

Here you are：拿去吧

...maybe you wanna open your birthday present tonight.|今晚就拆生日礼物 | Here you are.|拿去吧 | Maybe I should wait till morning.|我等明天早上再拆好了

Here you are：课文中类似的用法还有:Here y'are. 即

1.What're yu gonna have? 你想要点什么? | 课文中类似的用法还有:Here y'are. 即 Here you are. | 2.two coffees 两杯咖啡

B: Here you are：给你

A: Can you oblige me with a match? 借个火可以吗? | B: Here you are. 给你. | A: Thanks. You might find them pretty strong. 谢谢,你可能会觉得这些烟劲儿很大.