需

• 拼音: xū
• 汉字拆解: 需 = 雨 (rain radical on top) + 而 (phonetic/semantic — waiting, needing)

含义

To need; to require. Indicates that something is necessary or in demand.

A formal written character equivalent to 需要. Frequently appears in compound words (需求 demand, 必需 essential) and official documents. Less common as a standalone verb in modern speech compared to 需要.

例句

1. 完成这项研究所需的数据量远超出团队最初的预期估算。
2. 灾区重建工作需大量建材与专业技术人员的持续投入。
3. 高精度仪器在运输过程中需格外小心，以免损坏其精密部件。

用法指南

语境: official documents, academic, professional

语气: neutral

正确说法

• 项目实施需充足的资金保障，建议在启动前完成全部融资工作。(Project implementation requires adequate funding; it is recommended that all financing be completed before the launch.)
• 参与此次培训需提前通过资格审核，未经审核者不得擅自报名参加。(Participation in this training requires advance qualification review; those who have not been reviewed may not register on their own.)

错误说法

• 我需吃饭了 — 需 alone sounds incomplete in speech; use 需要 or 该 in conversational contexts; 需 is a formal written form

起源与历史

需 = 雨 (rain) + 而 (and/need) — original oracle bone meaning: waiting in the rain, thus 'needing/waiting'

文化背景

时代: Classical to Modern

世代: All ages

社会背景: Universal