【英语时差8，16】海洋最需

 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

1 aquarium   

n.水族馆，养鱼池，玻璃缸

参考例句：

• The first time I saw seals was in an aquarium.我第一次看见海豹是在水族馆里。
• I'm going to the aquarium with my parents this Sunday.这个星期天，我要和父母一起到水族馆去。

2 aquatic   

adj.水生的，水栖的

参考例句：

• Aquatic sports include swimming and rowing.水上运动包括游泳和划船。
• We visited an aquatic city in Italy.我们在意大利访问过一个水上城市。

3 ecosystems   

n.生态系统( ecosystem的名词复数 )

参考例句：

• There are highly sensitive and delicately balanced ecosystems in the forest. 森林里有高度敏感、灵敏平衡的各种生态系统。 来自《简明英汉词典》
• Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样，从雨林到半荒漠等不一而足。 来自辞典例句

4 ornamental   

adj.装饰的；作装饰用的；n.装饰品；观赏植物

参考例句：

• The stream was dammed up to form ornamental lakes.溪流用水坝拦挡起来,形成了装饰性的湖泊。
• The ornamental ironwork lends a touch of elegance to the house.铁艺饰件为房子略添雅致。

5 clogging   

堵塞，闭合

参考例句：

• This process suffers mainly from clogging the membrane. 这种过程的主要问题是滤膜的堵塞。
• And you know that eyewitness that's been clogging up the airwaves? 你知道那个充斥着电视广播的目击证人？

6 interfering   

adj. 妨碍的 动词interfere的现在分词

参考例句：

• He's an interfering old busybody! 他老爱管闲事！
• I wish my mother would stop interfering and let me make my own decisions. 我希望我母亲不再干预，让我自己拿主意。