不見得 - not necessarily so / not likely

bújiàndé

他們不見得會來。
tā mén bújiàndé huì lái .

It is not likely that they will come .

他 今晚不見得會來。
tā jīnwǎn bújiàndé huì lái .

He's not likely to come tonight.

他 不見得會再來了。
tā bújiàndé huì zài lái le .

He's not likely to come again.

旅行不見得一定要花很多錢。
lǚxíng bújiàndé yī ding yào huā duō qián .

Traveling doesn't have to be expensive.

胖 胖的孩子不見得健 康。
pàng pàng de háizi bújiàndé jiànkāng .

Fat kids are not necessarily healthy.

這工作一個月之內不見得能完成。
zhè gōng zuò yī ge yùe zhī nèi bújiàndé néng wán chéng.

The job is unlikely to be finished within a month.

這 種情況是可能的，但不見得會發生。
zhèzhǒng qíngkuàng shì kěnéng de ，dàn bújiàndé huì fāshēng .

It is possible , but not likely to happen .