Wǒ yǐjīng bǎ jiànyì tí le, zuìzhōng juédìng xītīng-zūnbiàn.
I've offered my suggestions; the final decision is entirely up to you.
Tips
usage
Polite-formal idiom. Tone can be genuinely deferential ('whatever you decide is fine') OR coolly resigned ('do whatever, I'm done caring') - context and delivery decide which.
memory
Parse it as 悉 ('entirely') + 听 ('obey / let') + 尊便 ('your honored convenience'): 'I entirely defer to your convenience.'
