This is actually a pretty good aerodynamic shape if you're just trying to maximize your forward speed.

如果你只是想最大化你的前进速度，那么这实际上是一个很好的空气动力学形状。

Now, eventually, it gets over toward Kolkata and up to Bangladesh, but by that time, the forward speed is moving quite fast, so the rainfall would be more spread out.

现在，最终，它向加尔各答和孟加拉国方向移动，但到那时，前进速度非常快， 因此降雨会更加分散。