坚持

If we hang on, we'll succeed.

hold out a little longer

not stop working despite one's poor health

stick it out; hang on/hold out to the last; persevere to the end

hold/keep/maintain/stand one's ground

cherish/uphold justice

keep to/uphold the truth; hold firmly to the truth

keep fighting; keep the flag flying

adhere/stick to principles; hold firm/uphold principles

uphold the fine traditions

adhere/stick to the One-China Policy

persist in seeking truth from facts

persist in the comprehensive, historical and developmental viewpoint

stick/adhere to the principle of integrating theory with practice

persevere in reform and opening-up

persist in dialogue, refrain from confrontation