十二月第一周用英文怎么说

"The first week of December" 是十二月第一周的英文表达方式。

"December" 来自拉丁语 "decem"，意为 "十"。十二月是一年十二个月中的第十二个月。

"Week" 来自古英语 "wice"，意为 "连续七天"。一周包含七天。

下面是一些例句:

I'm going on vacation during the first week of December.
(我要在十二月第一周度假。)
The company's fiscal year ends on the last day of the first week of December.
(公司的财政年度在十二月第一周的最后一天结束。)
We will be hosting a sale during the first week of December.
(我们将在十二月第一周举行促销活动。)