环境保护相关词汇 — 英语词汇题

根据中文提示补全单词：We should r_____ water instead of wasting it.�…

Unlike coal, energy from the sun can be replaced naturally and will not be used …

Choose the word that best completes the sentence: To save energy, we should ____…

For this test, a rover can move only when it has power. The rover is moving. Whi…

用所给动词的适当形式填空：More space stations ______ (build) on Mar…

In the future, humans may live on Mars. Because the gravity on Mars is much weak…