right”表强调，意思是“完全地”。see right through someone 一眼看穿；洞烛其奸。

【例句】
How did you know? You must see right through me.
你怎么知道的？你一定是一眼看穿我的心思。

She thinks she sees right through me, but she's wrong.
她以为她看透了我，可是她错了。