The reason, for three out of the four, is simple.

这四个中的三个的原因是简单的。

youdao

He is not an ordinary celebrity for another important reason: he has four legs.

他不是一位普通的明星，因为还有一个重要原因：他长有四条腿。

youdao

The reason we had great age of affluence is we had four continents to exploit.

我们有这么多年的富足是因为我们有四个大洲可以开采。

youdao

"The reason is that those plants are going to get so big that if you were to put three or four or six plants in, they are just going to be crowding each other out, and each plant is going to underperform."

VOA: special.2011.06.14

Damascus has steadfastly denied the charges. Hilal Kashan, professor of political science at the American University of Beirut, thinks that the Hezbollah-led opposition scored a big victory with the general's release and could win the parliamentary elections because of it:"The opposition is using the release of the 4 senior officers as a moral victory, and says for the past 3 years and 8 months, four officers were jailed for no reason, whatsoever and they are coming hard on the Lebanese legal system and the process the Lebanese government, and they say this is the beginning,"

VOA: standard.2009.04.30

"There's a reason four straight years people wanted him to be their coordinator and we denied it every time, " Ryan said.

WSJ: Ryan increasing his role in Jets' defense again

"The reason you fire four shots is to kill, " Nel persisted.

NPR: Top Detective Appointed New Pistorius Investigator

The reason: All four of the top American hopes possess serves and groundstrokes which are strong enough to be weapons on any surface, and the slow, high bounce on clay brings the ball into their hitting zone with sufficient time for them to set up their shots.

WSJ: Americans Produce Feats on Clay