What was once another one of the wild social canids, the grey wolf, has been altered radically, to the point that it has become its own unique animal.

还曾有一种群居性的野生犬科动物——灰狼，已经发生了急剧的变化并形成另一种独特的动物。

youdao

He had a terrible temper, and once threatened to kill another child.

他脾气暴躁，曾经威胁要杀死另一个孩子。

youdao

He had a terrible temper, and once threaten to kill another child.

他脾气暴躁，曾经威胁要杀死另一个孩子。

youdao

In another development, Friday brought news of the death of Sergei Tretyakov, once Russia's top spy.

VOA: special.2010.07.10

Never go back. Find another. Leave at once. Go for a long trip again, but this time we'll go wherever I want, won't we?" I nodded. My Lolita.

绝不会去，另找一所学校，马上走，再去长途旅行，不过这次去我想去的地方，好吗？“我点头，我的洛丽塔。

耶鲁公开课 - 1945年后的美国小说课程节选

Another thing is that, when once an invention is made, it tends to be copied all over the world.

另外，一旦一个发明诞生，它就会被模仿并应用于世界各地。

耶鲁公开课 - 金融市场课程节选

He may target one or two individuals, or start playing team members against once another.

FORBES: Magazine Article

Yesterday I was able to announce a meeting, and then once another one had been scheduled was able to follow up with another announcement.

WHITEHOUSE: Press Briefing

One brook trout erupted from the outlet pipe of a lobby fountain in a newly built Greenwich Village apartment house, which straddles the site of what was once another productive stream Minetta Brook.

FORBES: Brookies Under Broadway