I am free all afternoon on the first of February.

我二月一日整个下午都有空。

youdao

On the first of February 1524, thousands of people left their homes in London.

1524年2月1日，成千上万的人走出了自家房屋。

youdao

As of February 3rd, the price of a first class stamp will go up to 29 cents.

自2月3日起，每张一等邮票的价格将上涨到29分。

《柯林斯英汉双解大词典》

Iran launched its first satellite into orbit in February -- the thirtieth anniversary of the Islamic revolution.

VOA: special.2009.05.23

By February first,eighteen sixty-one, seven southern states had withdrawn from the United States of America.

VOA: special.2009.07.30

By February first,eighteen sixty-one, six states had followed South Carolina out of the Union.

VOA: special.2009.07.23

Some blogs previously expected that Windows 8 could reach 50, 000 applications by the first of February.

FORBES: Number of Windows 8 Apps Expected To Exceed 40,000 Tomorrow

And the Intergovernmental Panel on Climate Change, the IPCC, the Working Group I report, which deals with the science of climate change, that will be finalized in an intergovernmental meeting which will finish on the first of February.

NPR: Can Climate Change Explain Odd Weather?

But according to the fund tracking firm EPFR Global, while most style of funds saw outflows in the first week of February, three types of funds registered inflows.

FORBES: Favorite Investment Ideas Heading Into February