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1·Like seaweed, sea grasses are very susceptible to human pollution.

和海藻一样，海草很容易受到人类污染的影响。《柯林斯英汉双解大词典》

2·You could see the occasional solitary figure making a study of wildflowers or grasses.

你偶尔可以看见那个研究野生花草的孤独身影。《柯林斯英汉双解大词典》

3·We should plant more trees and grasses.

我们应该种更多的树和草。

4·A sweet fragrance rose from the wild grasses.

野草散发出芳香。《新英汉大辞典》

5·Spring is green, including green trees and green grasses.

春天是绿色的，绿色的树木，绿色的草地。

6·We don't see as many types of vegetation, trees, grasses and so forth.

我们看不到那么多种类的植被、树木和草等等。

7·The most common materials used for nests are grasses, branches and feathers.

筑巢最常用的材料是草、树枝和羽毛。

8·It is because salt marsh grasses have found ways to adapt to the conditions there.

这是因为盐沼草已经找到了适应那里环境的方式。

9·Though small, the country has abundant plants from desert grasses to tropical jungle.

这个国家虽然小，但植物种类丰富，从沙漠草原到热带丛林都有。

10·The seeds of grasses, flowers, and blooming trees made the long trips to these islands.

草、花和开花的树的种子长途跋涉到达这些岛屿。

(1)perennial grasses多年生牧草