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One of the most notorious hitchhikers is the zebra mussel. Originally from Russia, these thumbnail-sized mussels were first seen in the Great Lakes of North America in 1988. They cling to the sides of boats and clog the water intakes of power stations and factories, causing millions of dollars of damage each year. They also eat up the phytoplankton wherever they live, damaging the food chain and causing other species to starve.
notorious(a)惡名昭彰的
thumbnail(n)拇指
cling(v)攀，附
clog(v)堵塞，阻礙
intake(n)（空氣、水等）吸入，入口
power station 發電廠
damage(n)損害
food chain 食物鏈
starve(v)挨餓，餓死
zebra mussel (n)斑馬紋貽貝
phytoplankton(n)浮游植物
Americans are finally waking up to this issue, thanks, in part, to media reports of Burmese pythons living and breeding in Florida's Everglades National Park. These enormous snakes can be bought for as little as US$20 in pet stores. About 30,000 a year are sold, and many get "set free" after they grow beyond a convenient size.
issue(n)議題
media(n)媒體（medium)的複數，可用單數或複數動詞
enormous(a)巨大的，碩大的
convenient(a)便利的，合適的
Burmese(a)緬甸（人）的
python(n)蠎蛇，巨蛇
They pythons are more shocking than dangerous. Scientists worry more about aquatic species and insects. Sixteen species of non-native tropical fish were found recently in Florida waters, all released from home aquariums. The emerald ash borer beetle, after hitchhiking from Asia, killed over 6 million tree in Michigan. Clawed frogs from Kenya have overrun a pond in San Francisco.
aquatic(a)水的，水生的，水中的
insect(n)昆蟲
tropical(a)熱帶的
aquarium(n)水族箱，水族館
claw(n)爪子
overrun(v) 氾濫，肆虐
pond(n)水池
emerald ash borer beetle 翡翠白楊吉丁蟲
Kenya(n)肯亞（東非不列顛國協國家）
Governments are taking action, but the problem of invasive species will get worse for years to come. There simply are no solutions. In the meantime, biologists are trying hard to educate the public. One message is clear: Don't release your exotic pets into the wild!
solution(n)解答，解決方案
biologist(n) 生物學家
exotic(a)外來的，異國的
notorious(a)惡名昭彰的
thumbnail(n)拇指
cling(v)攀，附
clog(v)堵塞，阻礙
intake(n)（空氣、水等）吸入，入口
power station 發電廠
damage(n)損害
food chain 食物鏈
starve(v)挨餓，餓死
zebra mussel (n)斑馬紋貽貝
phytoplankton(n)浮游植物
Americans are finally waking up to this issue, thanks, in part, to media reports of Burmese pythons living and breeding in Florida's Everglades National Park. These enormous snakes can be bought for as little as US$20 in pet stores. About 30,000 a year are sold, and many get "set free" after they grow beyond a convenient size.
issue(n)議題
media(n)媒體（medium)的複數，可用單數或複數動詞
enormous(a)巨大的，碩大的
convenient(a)便利的，合適的
Burmese(a)緬甸（人）的
python(n)蠎蛇，巨蛇
They pythons are more shocking than dangerous. Scientists worry more about aquatic species and insects. Sixteen species of non-native tropical fish were found recently in Florida waters, all released from home aquariums. The emerald ash borer beetle, after hitchhiking from Asia, killed over 6 million tree in Michigan. Clawed frogs from Kenya have overrun a pond in San Francisco.
aquatic(a)水的，水生的，水中的
insect(n)昆蟲
tropical(a)熱帶的
aquarium(n)水族箱，水族館
claw(n)爪子
overrun(v) 氾濫，肆虐
pond(n)水池
emerald ash borer beetle 翡翠白楊吉丁蟲
Kenya(n)肯亞（東非不列顛國協國家）
Governments are taking action, but the problem of invasive species will get worse for years to come. There simply are no solutions. In the meantime, biologists are trying hard to educate the public. One message is clear: Don't release your exotic pets into the wild!
solution(n)解答，解決方案
biologist(n) 生物學家
exotic(a)外來的，異國的
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