2 sentences for 為期 (wéi​qī — [time limit])

1. 今晚的灯光秀是为期1个月的系列活动的盛大收场。

   jīn​wǎn de dēng​guāng​xiù shì wéi​qī1 ge yuè de xì​liè huó​dòng de shèng​dà shōu​chǎng.

   Tonight's light show is the grand finale of a month-long series of events.

   Source: UM-Corpus: Education

2. 宇航员将离开我们的星球大约三年，而不是为期三天的月球旅行。

   yǔ​háng​yuán jiāng lí kāi wǒ​men de xīng​qiú dà​yuē sān nián, ér bù​shì wéi​qī sān tiān de yuè​qiú lǚ​xíng.

   Rather than a three-day lunar trip, astronauts would be leaving our planet for roughly three years.

   Source: CCMatrix