初一英语翻译(中译英,)今天天气很好,我和我的家人一起去海滩玩.海滩真漂亮啊!我们躺在沙滩上,非常高兴.海水真清啊!我还看到许多小朋友和大人在玩海水.蓝蓝的天空,蓝蓝的水,倒影出我

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初一英语翻译(中译英,)今天天气很好,我和我的家人一起去海滩玩.海滩真漂亮啊!我们躺在沙滩上,非常高兴.海水真清啊!我还看到许多小朋友和大人在玩海水.蓝蓝的天空,蓝蓝的水,倒影出我初一英语翻译(中译英

初一英语翻译(中译英,)今天天气很好,我和我的家人一起去海滩玩.海滩真漂亮啊!我们躺在沙滩上,非常高兴.海水真清啊!我还看到许多小朋友和大人在玩海水.蓝蓝的天空,蓝蓝的水,倒影出我
初一英语翻译(中译英,)
今天天气很好,我和我的家人一起去海滩玩.海滩真漂亮啊!我们躺在沙滩上,非常高兴.海水真清啊!我还看到许多小朋友和大人在玩海水.蓝蓝的天空,蓝蓝的水,倒影出我们快乐的心情.(文中动词全要过去式)
快点哦!谢谢

初一英语翻译(中译英,)今天天气很好,我和我的家人一起去海滩玩.海滩真漂亮啊!我们躺在沙滩上,非常高兴.海水真清啊!我还看到许多小朋友和大人在玩海水.蓝蓝的天空,蓝蓝的水,倒影出我
it was fine today, my family and i went to the beach. what a beautiful beach! We lay there and felt happy. what clear the seawater was ! I also saw many children and their parents playing with seawater. The blue sky and the blue water reflected our happiness.

(1)向量(a-b)=(cosa-cosb,sina-sinb)
所以(cosa-cosb)^2+(sina-sinb)^2=(2根号5/5)^2
化简得cosacosb+sina+sinb=3/5=cos(a-b)
(2)因为0所以0<a-b<π,cosb=12/13
所以sin(a-b)=4/5
所以sina=sin[(a-b)+b]
=sin(a-b)cosb+cos(a-b)sinb
=(4/5)*(12/13)+(3/5)*(-5/13)
=33/65

Shelley's ranslation is okay. I am making a few corrections:
1.You need to capitalize the first word in every sentence.
2. It was a fine day today.
3. How clear the water was!
4.The blue water reflected the blue sky and our happy mood as well.天是无法倒映任何东西的,对吗?