Compared with the Hindu nationalists, Congress in fact seems quite perky. The reason why is not obvious.

同印度民族主义者相比，不知什么原因，国大党事实上显得很自信。

youdao

I don't scrapbook them, and the reason why is because something I decide to keep today might not be so important to me later.

我不做卡片剪贴簿，是因为今天我想留下的东西明天对我不一定那么重要。

youdao

The reason why is when you’re in retirement it’s impossible to get the money back that you lost because you don’t have a salary coming in, so time is no longer on your side.

原因是当你退休了，失去的金钱就不太可能赚回来了，因为你没有工资收入了，时不我待。

youdao

The female is much smaller. Institute director Steven Monfort has a reason why the clouded leopard may be rare.

VOA: special.2010.06.22

The reason why literacy is required of everyone is because we don't live to 200.

为何每个人都需要文化素养？,因为我们活不到200岁,我们出于对外界的好奇。

麻省理工公开课 - 媒体、教育、市场课程节选

I think the reason why triathlon is not so, so big is just because it requires a lot of time.

我认为铁人三项运动之所以不够普及，
是因为它需要大量的时间。

对体育项目的热爱 - SpeakingMax英语口语达人

Part of the reason why is the rapid growth of Latin America, and their openness to American business.

WHITEHOUSE: Weekly Address: American Jobs Through Exports to Latin America | The White House

And the reason why is because they didn't want a lot of renters.

NPR: Tips on Considering a Condo Purchase

And the reason why is that it implies this philosophical relationship between people and machines that gives machines a certain status.

NEWYORKER: The Visionary