密封良好：well sealed up
e.g.The central body of the plane is made entirely of carbon composite material, which makes the plane lighter and more fuel efficient.
(2) 谈谈产品的市场（market share）
业内人士都知道：everyone on the line
深受欢迎：very popular abroad
e.g.Everyone on the line knows that Chinese tea is good in quality and reasonable in prices.
又新潮又有品味：be in fashion and in good taste
精致、新颖、大方: well-tailored in workmanship, fresh and good in style
e.g.Designers are very forward thinking and buyers can be backward thinking. so themerchandiser must be the arbiter of good taste and fashion and keep the process moving in a positive direction.
e.g.An inexpensive and convenient recovery drink is chocolate milk, which is the perfect combination of carbs and protein.
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