可以用 "Indeed, it's very helpful" 来表达 "确实很有帮助" 的意思。
"Indeed" 是一个副词，意思是 "确实"、"的确"，用来加强语气，表示对某事的肯定或承认。
例如：
Indeed, it's a good idea. (确实是个好主意。)
Indeed, I've heard about it. (的确，我听说过。)
"It's very helpful" 是一个固定搭配，意思是 "非常有帮助"。"It's" 是 "it is" 的缩写，意思是 "它是"；"very" 是一个副词，意思是 "非常"；"helpful" 是一个形容词，意思是 "有帮助的"。
例如：
It's very helpful to have a map. (有地图非常有帮助。)
Your advice was very helpful. (你的建议非常有帮助。)
"Indeed" 是一个副词，意思是 "确实"、"的确"，用来加强语气，表示对某事的肯定或承认。
例如：
Indeed, it's a good idea. (确实是个好主意。)
Indeed, I've heard about it. (的确，我听说过。)
"It's very helpful" 是一个固定搭配，意思是 "非常有帮助"。"It's" 是 "it is" 的缩写，意思是 "它是"；"very" 是一个副词，意思是 "非常"；"helpful" 是一个形容词，意思是 "有帮助的"。
例如：
It's very helpful to have a map. (有地图非常有帮助。)
Your advice was very helpful. (你的建议非常有帮助。)