“，而答案往往是”一月一次“和”每秒四百次“。

The answers are always something like, "Once a month" and "Four hundred times a second".

youdao

你跟国内家里人或朋友们打长途，应该只限于一月一次。

Your telephone calls to your family or friends at home should be limited to once a month.

youdao

在电流不平衡时，大约一周一次。稍后，当平衡恢复时，一月一次……月暗期。

With the current imbalance, about once a week. Later, as the balance is restored, it can be once a month… Dark of the moon.

youdao

There was an important change in the discount rate in January of 2003.

在2003年一月,贴现率有了一次很重要的改变。

耶鲁公开课 - 金融市场课程节选

Our first review section will be in the week of January--with your teaching fellows-- will be in the week of January twenty-eighth and we're going to have to ask you to sign up with one of the teaching fellows.

我们的第一次复习课,将在一月。。。和助教一起-,将在1月28日所在的那周,我们会叫你们，选择和一个助教合作。

耶鲁公开课 - 金融市场课程节选