OpenEtymology

three-day

UKˈθriːdeɪUSˈθriːdeɪ

Meaning

1adj.

持续三天的;为期三天的

Structure

word structure
1
three
三
+
2
day
天

Usage

The festival is a three-day event with music and food.

这个节日是一场为期三天、包含音乐与美食的活动。

She took a three-day course to improve her skills.

她参加了一个三天的课程来提升技能。

The three-day hike exhausted everyone but was unforgettable.

为期三天的徒步让所有人精疲力尽,但也令人难忘。

Etymology

"three-day" 是典型的英语复合词,由基础数词 "three" 和名词 "day" 直接拼接而成,逻辑清晰。这种结构在英语中广泛用于描述时间跨度(如 "two-week"、"five-year"),直接通过数字+单位的形式高效传递时长信息。现代用法中多作定语(如 "a three-day trip"),体现英语的简洁构词特点。

Analysis

Structure
three-day=three三+day天

• three:源自古英语 "þrēo"(三),与德语 "drei"、拉丁语 "tres" 同源,表示数量概念。

• day:源自古英语 "dæg"(天),指从日出到日落的周期,后扩展为24小时单位。

词源溯源: "three-day" 是典型的英语复合词,由基础数词 "three" 和名词 "day" 直接拼接而成,逻辑清晰。这种结构在英语中广泛用于描述时间跨度(如 "two-week"、"five-year"),直接通过数字+单位的形式高效传递时长信息。现代用法中多作定语(如 "a three-day trip"),体现英语的简洁构词特点。

Three-day Meaning & Word Parts (three + day) | OpenEtymology