大哥,二哥,三哥,老哥,英文怎么说?

大哥,二哥,三哥,老哥 (大哥的尊称)
eldest brother,second elder brother,third elder brother,big brother
例子:
My eldest brother is twenty years old.
我大哥二十岁.
Her second elder brother is a student.
她的二哥是一名学生.
Andy's third elder brother is a teacher.
安迪的三哥是一名教师.
Can you help me,big brother?
你能帮我吗,老哥(大哥)?