His forehead, that I once thought so manly, and that I now think so diabolical, was shaded with a heavy cloud.

他的前额，我曾认为很有丈夫气概，现在我感到它变得十分恶毒，笼罩著一层浓云。

youdao

Waiter r: Yes, I once thought so. But I practiced everyday, worked hard to overcome all difficulties, and never gave up.

服务员R：是的，曾经一度以为是的。但是每天练习，努力去克服困难，坚决不放弃。

youdao

Once I was watching something about cooking on TV and I thought I could do this, so I went to the bookstore and looked for the biggest cookbook I could find.

有一次我在电视上看有关烹饪的节目，我想我可以做这个，所以就去书店找自己所能找到的内容最多的烹饪书。

youdao

That didn't happen to me -- once I got into the lab, I didn't want to leave. So, I thought, "You know what, I think I'll change the medical school plans and now I'm going to go all the way -- chemistry major, chemistry grad school."

这很好，但我不是这样，我一进入到实验室就不想离开了，所以我想“你知道吗,我想把我学习医学的计划改成化学-,我要学化学专业，读化学研究生“

麻省理工公开课 - 化学原理课程节选

Certainly, I thought so more than once during the negotiating process.

FORBES: How to Get an Insurance Claim Paid

So I just want to say once again that I thought the discussion that we had was excellent.

WHITEHOUSE: President Obama Meets with Israeli Prime Minister Netanyahu | The White House