过期

• ピンイン: guò qī
• 漢字の分解: 过 = to exceed or surpass; 期 = 月 (moon) + 其 (that) — a fixed point in time

意味

期限切れになる／期限が過ぎる（过期）

Applies to products (food, medicine, documents), deadlines, and contracts. Indicates that something has passed the point where it is valid, safe, or acceptable. Widely used in daily life, legal, and commercial contexts.

例文

1. 这瓶牛奶已经过期三天了，千万不要喝。
2. 护照即将过期，你最好提前三个月申请换发。
3. 合同若在规定期限内未续签，将视为自动过期失效。

使い方ガイド

場面: daily life, food safety, legal, documents

トーン: neutral

正しい言い方

• 购买药品时请务必检查有效期，避免服用过期药物。(When buying medicine, always check the expiry date to avoid taking expired medication.)
• 优惠券已经过期，本次消费无法享受折扣。(The coupon has expired and cannot be used for a discount on this purchase.)

避ける言い方

• 他的运气过期了 — 过期 applies to time-limited validity, not abstract qualities; say 他的运气用尽了 or 他时运已过

起源と歴史

过 (to pass, to go beyond) + 期 (period, deadline, date)

文化的背景

世代: All ages

社会的背景: Universal