Although he is 80 years old but the old man looks health a 80 years old b but c looks d health 改正

Although he is 80 years old but the old man looks health a 80 years old b but c looks d health 改正
Although he is 80 years old but the old man looks health a 80 years old b but c looks d health 改正

Although he is 80 years old but the old man looks health a 80 years old b but c looks d health 改正
有although,就不用but,去掉but
D healthy

去掉 but 英语中 although 不和but 连用 。