At first, I thought the challenge would be to train her to sit, to heel, to walk calmly beside us and not go wildly chasing the neighborhood rabbits.

一开始，我以为挑战在于训练它坐下、跟在我们后面、安静地走在我们身边，而不是疯狂地追逐附近的兔子。

youdao

He thought it was only falling leaves at first, so slight and delicate was the sound of it.

起初，他以为那不过是落叶声，因为那声音很轻很细。

youdao

At first he thought the sound did come from the crocodile, and he looked behind him swiftly.

一开始，他以为那声音是鳄鱼发出来的，他赶紧回头看了看。

youdao

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

VOA: special.2010.07.17

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

He said at first he just thought the idea of Pedal People was really cool.

VOA: special.2009.12.04

Lying on the ground, at first Nawab thought the man had killed him.

NEWYORKER: Nawabdin Electrician

My chest wells up like a child visiting Disney World for the first time at the mere thought of seeing the covers come off the next generation of this iconic sports car and, better yet, hearing its sweet engine sing.

FORBES: The 2014 Chevrolet Corvette: What We Know So Far And What It Needs to Succeed

My chest wells up like a child visiting Disney World for the first time at the mere thought of seeing the covers come off the next generation of this iconic American sports car and, better yet, hearing its sweet engine sing.

FORBES: The 2014 Chevrolet Corvette: What We Know So Far And What It Needs to Succeed