【正文】
llow sb to do sth 允許某人做某事 air pollution 空氣污染 cut down trees 砍伐樹木 plant more trees 種植更多的樹 take action to do sth 采取行動做某事 protect the environment 保護環(huán)境 depend on/upon 依靠 land and water pollution 土地和水污染 throw away 扔掉 natural resources 自然資源 turn off the tape 關(guān)掉水龍頭 energy from the sun 太陽能 turn off the power when your TV or puter is not in ,請關(guān)掉電源。 these small steps,and you can mak