预先

• Pinyin: yù xiān
• Desglose de hanzi: 预 = 予 + 页 (in advance); 先 = 人 + 之 (person + forward movement — to go first, before)

Significado

Con antelación; de antemano.

A formal adverb used to modify a verb, indicating prior preparation or advance action. Synonymous in meaning with 事先 (beforehand) and 提前 (in advance) but with slightly more formal register. Common in official documents, legal texts, instructions, and procedural descriptions: 预先通知 (to notify in advance), 预先安排 (to arrange beforehand), 预先准备 (to prepare in advance).

Ejemplos

1. 为顺利推进并购，法律团队预先梳理了多地审批、反垄断申报和披露要求。
2. 所有人员都已完成培训和职责确认，但演练情景与注入攻击方式未被预先告知。
3. 这项改革在提交审批前，已历经八个月调研和预先沟通，负责人也充分了解影响。

Guía de uso

Contexto: administration, legal, planning, procedures

Tono: neutral

Correcto

• 参演部队的部署和行动时间表必须保密，任何人不得预先透露给无授权人员。(The deployment and action schedule of the participating forces must remain confidential, and no one may disclose it in advance to unauthorised persons.)
• 为降低系统迁移对业务的影响，团队制定了预先准备清单，包括备份验证和回滚演练。(To reduce the impact of the system migration on operations, the team drew up a pre-preparation checklist including backup verification and rollback drills.)

Incorrecto

• 我预先了你 — 预先 is an adverb modifying a verb phrase; it cannot be used as a standalone verb or without a following verb; always say 我预先告诉你 (I told you in advance), 预先安排好 (arranged beforehand), etc.

Origen e historia

预 (in advance) + 先 (first/before — 人person + 之foot moving forward, the one who goes first). Together: in advance, ahead of time.

Contexto cultural

Generación: All ages

Contexto social: Universal