您要查找的是不是：
- Ham lost his life to save me from the storm at sea. 哈姆为把我从海上的风暴中救出来而失去了生命。
- I'm all at sea; I've no idea how to repair cars. 我手足无措，不知道怎样修理汽车。
- A cargo of steel was lost at sea. 有一货轮的钢材在海上遗失了。
- He felt completely at sea in his new school. 他在新学校中感到茫然不知所措。
- After three days at sea, we sighted land. 我们在海上航行三天後见到了陆地。
- The ship has spent three months at sea. 轮船已在海上度过了三个月。
- After three days at sea we sighted the land. 在海上航行了三天，我们终于看见了大陆。
- Many people are superstitious about death at sea. 许多人对在海上遇难存有迷信。
- I've been at sea for four lousy weeks in this tub. 我已经乘这条老爷船在海上航行了四个倒霉的星期。
- What is the force of gravity at sea level? 海平面的地球引力多大?
- He kept himself in practice at golfing. 他经常练习打高尔夫球。
- Radar is used to detect objects in the air or at sea. 雷达被用来探测空中或海上的目标。
- The coach let us out from practice at 3 o'clock. 3点钟时，教练令我们解散。
- They need more practice at [in] defense. 他们需要多练习防守。
- The refugees were at sea for forty days before reaching land. 这些难民在海上漂泊了40天后，他们的船才靠岸。
- I need more practice at shooting. 我需要多练习射击.
- I have been at sea for four lousy weeks in this tub. 我已经乘这条老爷船在海上航行了四个倒霉的星期。
- She is doing her practice at the piano. 她在练习弹钢琴。
- They need more practice at defense. 他们需要多练习防守。
- Their first sight of land came after ten days at sea. 他们在海上十天之後首次看到陆地。
