急你所急，相信你对译文满意。
请注意，最后一句的“一次”在逻辑上似乎有点毛病，所以我没译成“Once”,而是用了“一度”的英文对应短语。
The auspicious and yet mysterious number 3 is deeply imbedded in people’s life. People are used to dividing into three the amount of something’s existence or the length of a development process. The biblical description of God’s creation of all living beings in 7 days has resulted in the use of 7 days for a week as a unit for time calculation that is generally accepted in the world. For some time, the number 7 was used as a lucky number by people of many English-speaking countries. It is alleged that commodities bearing the number 7 sell like hot cakes in the United States.
The lucky and mysterious number "3" has been clearly reflected in people's life. People have been used to divide the quantity and developing process of things into three for the sake of luck.----这中间没有过渡吗？-----The story in the Bible that God created the world in seven days has made it a rule that a week is composed of seven days, which is a universal dating method. -----“因此”吧？-------Therefore, in many English-speaking countries the number "7" has been regarded as a lucky number. It's said that commodities with a "7" has quite a good market in America.
The auspice and mysteriousness of number "three" have reflected in people's daily life profoundly. People are accustomed to dividing① the quantity or the developing process of one thing into three parts.
The preach in Bible saying that all things are created in seven days by God and ②making seven days as a week has become the international/ worldwide timing method. Therefore, 7 has been seen as a lucky number in many English-speaking countries. It's said that in USA, goods with 7 labelled are more popular than others.
① 【事物存在的量】 我翻译的很字面。 需要更多斟酌。
② 【使7天表示一周】 这里我觉得我这个句子过长，句子结构可以优化。
以上。
希望有所帮助。
仅供参考。 ：）
那还是算了吧，我不是英语专业的
Good luck, the mysterious number "three" deeply reflected in people's lives, people used to the volume or to the existence of the development process into three to Tuji Li. ) In the Bible about God creating the world within 7 days of things to say, so that 7 days a week, became the world's common timing methods. A, 7 by many English people as a lucky number. It is said that in the United States to use "7" and more popular products.
Good luck, the mysterious number "three" deeply reflected in people's lives, people used to the volume or to the existence of the development process into three to Tuji Li. ) In the Bible about God creating the world within 7 days of things to say, so that 7 days a week, became the world's common timing methods. A, 7 by many English people as a lucky number. It is said that in the United States to use "7" and more popular products.
这个对吗？
