1

我們

wǒmen

we; us; ourselves; our

2

應該

yīnggāi

ought to; should; must

3

盡力

jìnlì

to strive one's hardest; to spare no effort

4

不要

bùyào

don't!; must not

5

污染

wūrǎn

to pollute; to contaminate (lit. and fig.)

6

環境

huánjìng

environment circumstances surroundings ambient classifier: 個