Word: 一封 (yìfēng) Example sentences using 一封 2 sentences, showing page 1 of 1. 她写了一封恳切的道歉信。 Tā xiěle yìfēng kěnqiè de dàoqiàn xìn. She wrote a sincere letter of apology. 我要写一封信给他。 Wǒ yào xiě yìfēng xìn gěi tā. I'm going to write him a letter.