"Oh, thanks, now that's all cleared up." Heavy sarcasm.
“哦，真感谢，现在一切都清楚了。” 我很讽刺的说道

I realized I had stopped walking again.
我意识到我有停止了脚步。

We were under the shelter of the cafeteria roof now, so I could more easily look at his face. Which certainly didn't help my clarity of thought.
我们现在在自助餐厅的屋檐下，所以我可以更加容易看到他的脸。这完全没有帮助我清晰思路。

"It would be more… prudent for you not to be my friend," he explained. "But I'm tired of trying to stay away from you, Bella."
“这对于不成为朋友，我应该更加谨慎”，他解释道。“但是我厌倦尽力去远离你了。”

His eyes were gloriously intense as he uttered that last sentence, his voice smoldering. I couldn't remember how to breathe.
他说最后一句话的时候他的眼睛闪耀着光芒，他的声音阴郁。我都快忘记如何呼吸了。

"Will you go with me to Seattle?" he asked, still intense.
“你会和我一起去Seattle吗？”他问道，任然很热情。

I couldn't speak yet, so I just nodded.
我什么也说不出，就只是点头。

He smiled briefly, and then his face became serious.
他微笑道，然后他的脸变得严肃。

"You really should stay away from me," he warned. "I'll see you in class."
“你真的应该远离我，”他警告道。“我们再教室见。”

He turned abruptly and walked back the way we'd come.
他突然回头并且朝我们来的方向走了。