Her lie was so see-through that everyone could tell immediately.

see-through 是由动词 see（看）和介词 through（穿过）组成的复合形容词，字面意思是"可以看穿的"，引申为"透明的、明显的"。 see-through 在这里比喻谎言非常容易被识破，就像透明的东西一样无法隐藏。