【英语时差8，16】海洋最需
时间：2015-10-19 05:50:49
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）
Don: Today, on A Moment of Science, the Ocean's Most Wanted. Sure, they might seem innocent and downright lovely in your aquarium1, but released into the wild, your plants and fish can knock aquatic2 ecosystems3 right out of balance. Today's invasive species: the water hyacinth.
Ya?l: Don, aren't you being a little melodramatic?
D: Not at all. Native to the Amazon basin, but considered an
ornamental4 aquarium plant, the water hyacinth was introduced to Florida in 1884. By the mid-1950s, water hyacinths were
clogging5 Florida's water ways and
interfering6 with navigation, not to mention displacing the native species. Clean up took millions of dollars, and they're still spreading on every continent except Antarctica.
Y: Hmm! that is a sad story.
D: And here's the thing. Guess how many of the species on the International Union for the Conservation of Nature's list of the one-hundred worst invasive sp
分享到：
Error Warning!
出错了
Error page: /mobile/index.php?aid=328818&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`='328818' and `l`.`level_id`>='' group by `b`.`word` order by `l`.`index` asc
