您要查找的是不是：
- Pure air and water. 纯净的空气和水。
- Air and water are needful for living things. 空气和水是生物不可缺少的东西。
- Air and water are indispensable to life. 空气和水是生命所必需的东西。
- The air and water in the mountains are not as pure as before. 山间的空气和水都不如以前纯净了。
- Applicable medium can be pure air and noncorrosive gases. 适用介质为纯净空气和非腐蚀性气体。
- Heat is as important to life as air and water. 热量对生命来说象空气和水一样重要。
- The air and water have dirtied quickly. 空气和水很快就被污染了。
- We are unable to subsist without air and water. 没有空气和水我们就活不下去。
- pure air and water; pure gold; pure primary colors; the violin's pure and lovely song; pure tones. 纯净的空气和水；纯金；纯净的三原色；小提琴纯净可爱的歌唱；纯净的音色。
- For there is life there must be air and water. 有生命存在就必须要有空气和水。
- Living things will die without air and water. 没有空气和水,生物就会死亡。
- Man can't live without air and water. 人离开空气和水就不能活。
- All living thing depend on sunlight, air and water. 一切生命依赖于阳光、空气和水。
- All living things will die without air and water. 没有空气和水,所有的生物都将死亡。
- We cannot subsist without air and water. 没有空气和水我们就活不下去。
- For there to be life there must be air and water. 一定要有空气和水才有生命.
- Without air and water, we could not exist. 要是没有空气和水，我们就无法生存。
- Air and water are essential to all animals. 空气和水对所有动物来说都是不可缺少的。
- Plants live on sunlight , air and water. 植物靠阳光，空气和水生存。
- The plant can help purify the air and water. 它有净化空气和净化水质的作用。
