Hello John, how are you?
哈啰，约翰，你好吗？
Hello, is there anybody there?
喂，那里有人吗？
Say hello to Liz for me.
替我向利兹问好。
They exchanged hellos(= said hello to each other) and forced smiles.
他们相互打个招呼，勉强笑笑。
Hello, hello, what's going on here?
嘿，嘿，这是在干吗？
Hello? You didn't really mean that, did you?
嘿？你不会真是那个意思吧？
I'm like, ‘Hello! Did you even listen?’
我说：“嘿！你到底有没有听我说话？”
1.你好;您好;哈喽;喂,表示问候,打招呼或接电话时
2.〈非正式〉喂,用于吸引某人的注意力
3.〈非正式〉诶;拜托,表示惊讶,好奇或讽刺
1.used as a greeting when you meet sb. or begin to talk to sb. on the telephone
2.<informal>used for saying that you think sb. is not being very sensible or is not paying attention to what is happening
3.<informal>used for expressing surprise, interest or ironic emphasis
1.You know, he didn "t even bother to say hello to me when I saw him on the street yesterday. "
你可知道，昨天我在马路上见到他，他连招呼都不跟我打。
2.We didn't have this planned. But we decided to stop by just to say hello, when I heard my boys were going to be here. I couldn't resist.
我们并没有这个计划。但是我听说我的支持者们会聚集在这里，于是我们决定停下，来跟大家问好。我当然很乐意这么做。
3.I walked up to that girl to say hello, but she blew me off.
我走到那个女孩的面前跟她打招呼，但是她没有理我。
4.You can't walk anywhere in Java without an entourage of the most gorgeous children, who rush up to say hello with the warmest smiles.
在爪哇，到哪里都可以看见可爱的孩子，他们总是带着温暖的微笑奔过来和我们说哈罗。
5.Hello everyone, I'm new to the front, very pleased to be a member of the company.
大家好，我是新来的前台，非常高兴能够成为公司的一员。
6.Hello Dad, just a few lines to let you know I'm well and hope you all are too.
你好，爸爸，我只说几句话，但你得知道我很好，希望你也是。
7.The fans of that brand have literally stolen the image to make fan art, claiming that Hello Kitty is now part of our pop culture.
HelloKitty品牌的粉丝公然剽窃这个图像来做同仁艺术，还宣称HelloKitty现在已是我们流行文化的一部分。
8.Girls don't necessarily have to have hour long conversations every night but its nice for us to hear your voice even for a quick hello.
女孩子虽然不用你整晚陪她说话，但是有时很想听见你轻轻的问候也很美。
9.Hello- nice to meet you. Take a lott- I'll be down in a minute.
你好，很快活认识你。请坐，我马高上去。
10.Then he spoke slowly, but I could not (was not able to) understand hello m.
后来，他说话说得慢了，可是我还是听不懂他的话。