这项任务的难度随着第二个音调的高低而变化。

The task varied in difficulty according to the pitch of the second tone.

youdao

第二个假设是，我们确实能够感知一切，但是大脑会对信息进行分类，而任何与我们专注的事情无关的信息都会被归类为低优先级信息。

The second hypothesis is that we do perceive everything, but the brain categorizes the information, and whatever is not relevant to what we are concentrating on gets treated as low priority.

youdao

事实上，这里有两个时期的降雨和湖泊形成：第一个始于大约37000年前；而第二个可以追溯到约一万年前。

There were actually two periods of rain and lake formation: the first one began about 37,000 years ago; and the second one dates from about 10,000 years ago.

youdao

So the test on the left, you'll remember, was the one with test one, I believe, was the uniform distribution, and test two is the Gaussian.

所以左边的测试，你得记得就是均匀分布,而第二个测试是高斯分布。

麻省理工公开课 - 计算机科学及编程导论课程节选

So in terms of remaining valence electrons we have 12, so we can finish off each of our Lewis structures, so that's our first structure there, and our second structure there.

那么关于剩下的价电子，我们有十二个，因此我们可以完成这两个路易斯结构了，那么这是我们的第一个结构，而那是我们的第二个结构。

麻省理工公开课 - 化学原理课程节选

So in each set, the first and second plague are forewarned that's what the FW is on the side--whereas the third plague is not.

在每一组中，第一个和第二个瘟疫都是被预先警告,而第三个却没有。

耶鲁公开课 - 旧约导论课程节选