他承受的压力对他的同事们来说是显而易见的。

The stress he was under was ___apparent to his colleagues.

我们最初的计划过于雄心勃勃，这一点变得明显起来。

It became ___apparent that our original plan was too ambitious.

他毫无明显理由地突然离开了会议。

He left the meeting abruptly for no ___apparent reason.