无忧快乐起
I have three sons, One of them is (岁数)years old, and one of them is (岁数)years old, the last one is (岁数)years old, 你不需要说什么大儿子,二儿子和三儿子之类的,在美国没有用这种说法的,你直接告诉别人你的儿子几岁就可以了。搞笑版的翻译(别学): I have three sons, One of them is big, and One of them is "two", and the last one is small.