HSK 5 · verb · Practice
约定
to agree on; to arrange
我们约定明天早上八点见面。
Wǒmen yuēdìng míngtiān zǎoshang bā diǎn jiànmiàn。
We agreed to meet at eight tomorrow morning.
他显然忘了我们的约定。
Tā xiǎnrán wàngle wǒmen de yuēdìng.
He clearly forgot our appointment.
我们只是口头约定，没有签字。
Wǒmen zhǐshì kǒutóu yuēdìng， méiyǒu qiānzì。
We only had a verbal agreement, without signing.
这个词的用法是约定俗成的，大家都这样说。
Zhège cí de yòngfǎ shì yuēdìng-súchéng de， dàjiā dōu zhèyàng shuō。
The usage of this word is established by custom; everyone says it this way.