一言为定

yī yán wéi dìng

定義

1. (idiom) it's a deal
2. that's settled then

一言为定 の構成語

• 一 yī: one
• 定 dìng: to set
• 为 wéi: as (in the capacity of)
• 为 wèi: because of
• 一言 yī yán: one sentence
• 言 yán: words