That can be seen with half an eye.

约略 一看便一目了然。

youdao

He glanced books on stalls with half an eye.

他漫不经心地瞅一眼摊子上的书本。

youdao

But it was the other door, at the front of the church, that everyone had half an eye on.

在教堂的前面还有另一扇门，每个人都会往那瞄上一眼。

youdao

But I would keep half an eye on any future children and intervene early if they show signs of psychiatric abnormality.

CNN: What are the chances my future kids will be bipolar?

"OK, I have done it, let's focus on my next goals which are the grand slams, " Williams said, admitting that she already had at least half an eye on the French Open in Paris, starting on May 26.

CNN: STORY HIGHLIGHTS

And the proceedings will necessarily slog through all the gory details of the biggest oil spill in U.S. history, forcing those of us who follow the oil industry to suffer flashbacks of the horrific explosion, oil-soaked beaches and those endless hours keeping half an eye on the submarine video feed of oil gushing from the Macondo well.

FORBES: Dear BP: Please Don't Make Us Go Through This Again