300
哥哥
What is older brother
300
老师好
What is Hello Teacher
300
生日快乐
What is Happy Birthday
400
姐姐
What is older sister
400
同学们好
What is Hello Classmates
500
他们
What is They or Them
500
弟弟
What is younger brother
500
早上好
What is Good Morning
500
请进
What is Please Come In