您要查找的是不是：
- gravity polar tides 重力极潮
- The two systems of government are polar opposites. 这两种政体正好相反。
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- The ship lay keeled over at low tide. 那艘船因退潮而倾覆。
- These rocks are awash at high tide. 这些礁石在涨潮时被海水淹没。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The tide had washed up cargo from the wrecked ship. 潮水把遇难船上的货物冲到了岸边。
- The tide flushed through this narrow inlet. 潮水涌过了狭窄的小湾。
- We are fully aware of the gravity of the situation. 我们十分清楚形势的严峻性。
- The tides depend on the pull of the moon. 潮汐是月亮引力作用的结果。
- Moon's weak gravity let the gasses slip away into space. 月球的微弱引力允许气体逃到太空里去。
- The tide comes in with a sudden rush here. 这里潮水来势汹涌。
- Jupiter, with august gravity, sitting in the midst. 朱庇特威风凛凛地坐在当中。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- The stone rolled down the hill by gravity. 石头在重力作用下向山下滚去。
- What is the force of gravity at sea level? 海平面的地球引力多大?
- The moon's pull affects the tides on earth. 月亮的引力影响地球上的潮汐。
- He could hardly keep his gravity. 他忍不住要笑出来。
- She does not know the gravity of her illness. 她不知道自己病情严重。
