那样该多好用英语怎么说

"How convenient it would be" 可以用英语表达为 "How convenient that would be" 或者 "How useful it would be"。这句话的来源是一种常见的口语表达方式，用来表示对某种情况的期望或希望。

下面是一些使用这种表达方式的英文例句，并附上中文翻译：

"If we could just find a way to reduce the cost of production, how convenient it would be for our business." (如果我们能够找到降低生产成本的方法，对我们的生意将会多么方便。)

"I wish I had a car. How convenient it would be to just drive to work every day." (我真希望自己有辆车，每天开车上班多方便啊。)

"If only I could speak French fluently. How useful it would be for traveling and meeting new people." (要是我会说流利的法语就好了。对于旅行和认识新朋友来说，会说法语有多有用啊。)