So you place your nori with the shiny side down.

把海苔的光泽面朝下放置。

Seaweed actually has two sides, the shiny side and rough side.

海草片实际上有两面，亮的一面和粗糙的一面。

I said, whichever side is the shiny side, I will hold the bat in that hand.

我说，哪一边是亮面，我就拿那只手的球棒。

Reverse swing is wherever the shiny side is, the ball starts to go in that direction.

反向挥杆是在有光泽的一面，球开始朝那个方向移动。

I would be watching him closely and I'd be watching the ball, which side is a shiny side and which side is the rough side.

我会密切注视着他，我会注视着球，哪一侧是光亮的一侧，哪一侧是粗糙的一侧。

Sometimes the surfaces are such that it becomes a little difficult to figure out which side is the shiny side and which is the rough side.

有时表面会变得有点难以辨别哪一面是光亮的一面，哪一面是粗糙的一面。