常見例句雙語例句Vitamin D -- your skin converts sun into vitamin D, but a lot of people have this sun phobia.維生素D—你的皮膚把日光轉(zhuǎn)化成維生素D，但是很多人有太陽恐懼癥。Vitamin D is the only vitamin that humans make themselves and is essential for the health of skin and bones.維生素D是唯一一種由人體自己產(chǎn)生并在皮膚骨骼的健康中必不可少的維生素。Keep in mind, however, that skin color, where you live and how much skin you have exposed all affect how much vitamin D you can produce.不過，還應(yīng)切記，皮膚顏色、生活地點(diǎn)和暴露在外的皮膚面積大小，都會影響你的身體所能產(chǎn)生的維他命 D 的量。原聲例句They play indoors. Everything's indoors. And so we're actually starting to see low levels of vitamin D in areas where the sun is plentiful."In some countries, milk producers add vitamin D to milk so children will get enough.Ultraviolet light from the sun changes a substance in the skin into vitamin D.權(quán)威例句And of course vitamin D is key to building bone health and preventing osteoporosis.FORBES: That Vitamin D You're Taking? It May Not Be What It AppearsAnd ten minutes (without sunscreen) is equal to 10000 international units of vitamin D.FORBES: 10 Things to Do When You Leave Corporate AmericaIf you believe in the case for vitamin D, she advises, take supplements and stay pale.FORBES: Magazine Article 返回 vitamin d