【轻松英文阅读】弹力牛仔裤
时间：2017-04-27 07:16:44
搜索关注在线英语听力室公众号：tingroom，领取免费英语资料大礼包。
（单词翻译）
Remember how stiff jeans used to be? In the olden days, even sitting down or climbing stairs was hard. But these days jeans can be skintight yet surprisingly comfortable. The secret is the spandex, which they add to denim1 to make it stretchy and comfortable.
However, this comfort comes at a price. Believe it or not, our love of stretchy jeans has lead to a shortage in the materials used to make American money.
Until recently, one of the main materials in American money was
leftover2 denim from jeans manufacturers. The leftover denim was
bleached3, turned into
pulp4, and finally it was made into bills.
printing money
Nowadays, spandex is added to most denim to make it comfortable. Denim with spandex is unusable for paper-making. As a result, the company that prints US money has to find other sources of cotton
fiber5. This switch has been difficult but these days they are mainly using natural fiber—not recycled.
分享到：
Error Warning!
出错了
Error page: /index.php?aid=405438&mid=3
Error infos: Got error 28 from storage engine
Error sql: select `l`.`tag`,`l`.`index`,`l`.`level_id`,`b`.`id`,`b`.`word`,`b`.`spell`,`b`.`explain`,`b`.`sentence`,`b`.`src` from `new_wordtaglist` `l` left join `new_word_base` `b` on `l`.`tag`=`b`.`word` where `l`.`arc_id`='405438' and `l`.`level_id`>='' group by `b`.`word` order by `l`.`index` asc
