13 in English is thirteen. The word comes from the Old English word "þrēotēne," which was a combination of the words "þrīe," meaning "three," and "tēne," meaning "ten." Here are some example sentences in English and their translations in Chinese:

My favorite number is thirteen. (我最喜欢的数字是十三。)

The movie lasted for thirteen hours. (这部电影持续了十三个小时。)

The hotel room cost thirteen dollars per night. (这间酒店的房间每晚十三美元。)

语音 (yǔ yīn) in Chinese means "voice" or "pronunciation." It comes from the Chinese characters 语 (yǔ), which means "language," and 音 (yīn), which means "sound." Here are some example sentences in English and their translations in Chinese:

She has a beautiful voice. (她有一个漂亮的声音。)

I can't understand your pronunciation. (我听不懂你的发音。)

The voice recognition software didn't work. (语音识别软件没有起作用。)