qún lǐ chíchí dìng bù xiàlái shí, kěyǐ gěi mòrèn fāng'àn: “rúguǒ jīn wǎn jiǔ diǎn qián méi rén fǎnduì, jiù dìng zhōu liù sān diǎn

群里迟迟定不下来时，可以给默认方案：“如果今晚九点前没人反对，就定周六三点。

When the group can't decide for a long time, you can offer a default plan: 'If no one objects by 9pm tonight, let's set Saturday at 3pm.'