An occasional loose sentence prevents the style from becoming too formal and allows the reader to relax slightly.

偶尔的松散句子可以防止风格变得过于正式，让读者稍微放松一下。

Loose sentences are common in easy, unforced writing, but it is a fault when there are too many of them.

松散的句子在轻松、自然的写作中很常见，但是当它们太多时就是一个错误。