Hello, Mr Brown.
你好，布朗先生。
Hello, it's us back again.
嘿！我们又回来了。
Dear teachers and students,. We are from the English typing group.
同学们，老师们，大家早上好。我们来自英语打字社团。
Dear teachers and students: Good morning! Today my topic is'civilized manners and habits'.
尊敬的.老师、亲爱的同学们：早上好！今天我国旗下讲话的题目是：文明礼仪、习惯养成。
Dear teachers and fellow students, Good morning!
亲爱的老师和同学，大家好。