生成一篇英文短文，并要求将其中的大写字母转换成小写字母。
here's a short paragraph in lowercase:

the quick brown fox jumps over the lazy dog. this sentence is known as a pangram, which means that it contains all the letters of the english alphabet. pangrams are often used to test typewriters or keyboards, as they require the use of every letter. they are also enjoyed as word puzzles and tongue twisters. can you think of any other pangrams?