interjection
R
A friendly way to greet someone.
Hallo, can I help you?
你好，需要帮助吗？
R
An expression of surprise.
Hallo, I didn't expect to see you here!
你好，我没想到会在这里见到你！
R
A way to get someone's attention.
Hallo, are you even listening to me?
你好，你在听我说话吗？