VOA常速英语:Non-Native Weed Threatens Northwest Clams

短语讲解：

1. The usual story of invasive species goes something like this: an exotic plant or critter hitches a ride on some incoming cargo, alarm bells go off and an eradication campaign starts.

invasive species入侵物种
go off（警报器等）突然发出声音
例句：My alarm went off at 6 A.M.
我的闹钟在早晨六点闹。

2. But now, Japanese eelgrass, a non-native seaweed showing up along America’s West Coast, breaks that mold.

show up到场, 出席,如约赶到,出现,露面
例句：He showed up when we least expected him.
我们根本没有料到, 他竟然来了。

3. But, Sheldon jokes, the way things are going that's shaping up to be an inexpensive state school rather than a plush private college.

shape up改进, 顺利发展
例句：Plans for our picnic are shaping up very well.
我们的野餐计划进展顺利。
rather than而不是
They thus increased their annual grain production rather than diminished it.
他们这样增加了而不是减少了粮食年产量。

4. "In the summer, this piece of ground here will be completely covered with grass," he says.

be covered with 盖着,覆着
例句：The field is covered with snow.
田野一片积雪。

5. A suite of smaller creatures probably lives and feeds in the vegetation.

a suite of　一系列；一套
例句：She has a suite of rooms in the hotel.
她在那家旅馆有一套房间。

6. The Sierra Club also opposes eradication of the accidental colonist, even though it's non-native.

even though即使、虽然
例句：Bob always enjoys sailing, even though the weather is cloudy.
鲍勃总是很喜欢航行, 即使空中乌云密布。

7. But more importantly, in their efforts to eradicate Japanese eelgrass, there is a very high probability they could be eradicating native eelgrass

in one’s efforts to努力
例句：She persevered in her efforts to win the championship
她为赢得冠军而不断努力。

8. That is something that would have a major impact on recovery of our fish species and the birds.

have an impact on对…有影响;对…起作用,产生效果
例句：The computer has a great impact on modern life.
计算机对现代生活产生了巨大的影响。

9. "It might not be the end-all, be-all solution that either side is looking for but what it does do is allow us to acknowledge it is a problem in one area, but it is not considered a problem in the other areas," says Alison Halpern, director of the panel.

look for 寻找
例句：He should early look for a job.
他早该找工作了。

10. Halpern's gotten some positive feedback, but not everyone's on board yet.

on board在船〔火车, 飞机, 汽车〕上
例句：A small boat drifted in during the night, with no one on board.
夜间漂来一条无人的小船。