At first thought it seems incredible that there can be enough space in the "solid" ground underfoot to hold all this water.

乍一想，似乎难以置信的是，在脚下的“坚实”地面上居然有足够的空间来容纳这么多的水。

youdao

Towler at first thought it was a joke.

起初，托勒以为这不过是个玩笑而已。

youdao

I picked up the doll and at first thought, "Wow! A singing doll... how cool!"

我把娃娃拿起来，心想“是个会唱歌的娃娃哪，太酷了！”

youdao

At first I thought the city was empty. The buildings all were empty and in poor repair.

VOA: special.2010.07.17

Yeats at first thought to call this poem "What Is Joy?"

他刚开始想命名为，什么是欢欣“

耶鲁公开课 - 现代诗歌课程节选

So, it seemed like a good start for me, pre-med/bio, and I signed up for my bio class -- I found out, as Professor Drennen did, that I had to take chemistry as well. I wasn't as upset, I was sort of a neutral chemistry person at this point, but I thought it was pretty smart to get it over with on the first semester, so that's what I did.

一个既在科学上有挑战又能帮助他人的职业，从医学预科或者生物起家-,我参加了生物课，我和Drennen教授一样，我也必须要上化学课，我并没有很不爽,我当时对化学的态度很中立。

麻省理工公开课 - 化学原理课程节选

This man we at first thought set-up, too scarred to not be anything but a victim.

FORBES: Witnesses and Accomplices

Massachusetts State Police officials at first thought the shooting was unrelated to the marathon bombings.

WSJ: Search for Dzhokhar Tsarnaev Over, Focus Shifts to Marathon Bombing Investigation

When Merck yanked Vioxx, investors at first thought Pfizer, which made rival drugs Celebrex and Bextra, would profit.

FORBES: Magazine Article