yī biān / shì / shēng zhí / de / jī huì / yī biān / shì / jiā rén / de / fǎn duì / tā / jìn tuì wéi nán

一边是升职的机会，一边是家人的反对，他进退为难。

With a promotion on one side and family opposition on the other, he was caught in a dilemma.