承诺兑现需要付出实际行动。

Chéngnuò duìxiàn xūyào fùchū shíjì xíngdòng.

Fulfilling promises requires concrete actions.

中奖后，你需要带着身份证去银行兑现支票。

Zhòngjiǎng hòu, nǐ xūyào dàizhe shēnfènzhèng qù yínháng duìxiàn zhīpiào.

After winning the prize, you need to take your ID to the bank to cash the check.