In one case, the professor didn't require students to buy a textbook, just an access code to turn in homework.

有一次，教授并没有要求学生购买教科书，只是需要作业提交的访问码。

youdao

In one case, a group of conservationists has already taken it upon itself to try on their own to save an endangered tree, the Florida Torreya tree, through Assisted Migration.

在一个案例中，一群自然资源保护主义者已经自己采取行动，通过协助迁徙的方式来拯救一种濒临灭绝的树——佛罗里达香榧树。

youdao

In one case, a mother presents her foot to her crying baby, signaling: "Climb on me."

在一个案例中，一只母亲将她的脚伸向她哭泣的婴儿，发出信号：“爬到我身上。”

youdao

In one case,British resident Binyam Mohamed claimed he was tortured while in custody in Pakistan and Morocco and he says British officers knew.

VOA: standard.2009.08.10

We would not expect that the mean should be over 160, or in one case, 150, after only 100 days trading, right?

我们本来觉得平均值应该大于160。,或者在一个例子中是150，这是100天之后的？

麻省理工公开课 - 计算机科学及编程导论课程节选

So in one case, we could actually put carbon in the middle, in one place, we could put sulfur in the middle, and in one case we could put nitrogen.

那么有一种情况是，我们把碳放在中间，还有一种情况是，把硫放在中间，另外一种情况是把氮放在中间。

麻省理工公开课 - 化学原理课程节选

FutureBook mentions that in one case, direct visits accounted for 30 percent of all visits.

FORBES: Filling In The 'Direct Visits' Data Hole

In one case, a self-employed client was 73 years old and wished to retire.

FORBES: Dealing with IRS Collection Action

In one case, a man was found frozen and pulseless after a suicide attempt.

NEWYORKER: The Checklist