So I was surprised to learn that most teabags actually contain a fine plastic mesh.

我很惊讶地了解到大部分茶包其实含有一层薄薄的塑料网。

Campaigners in the UK have criticized the use of plastic mesh screens to protect the country's most celebrated prehistoric monument, Stonehenge, from birds.

塑料网幕被用于保护英国最著名的史前纪念碑--巨石阵，使其免受鸟类伤害，英国活动人士批评了这一做法。