1·Thousands of microscopic holes in the mesh fabric allow 80 per cent of sunlight to penetrate through to the skin.
泳衣的网状布料上有数千个微孔，可以使80%的阳光穿透泳衣直射皮肤。
2·The sun can reach you on cloudy, rainy, or snowy days as well. Plus, Sadick adds, "skin-damaging UV rays can penetrate through glass, so you need to apply sun protection even indoors."
别天真地以为宅在家里就不用防晒了：不论阴天雨天还是雪天，阳光都会让你无处可逃，其中有害的UV射线甚至可以穿透玻璃抵达室内。
3·Staining from coffee is very superficial, effecting just the biofilm, a thin layer of bacteria which covers the teeth and gums, and doesn't penetrate through the enamel itself.
咖啡的着色是浅表性的，仅仅影响菌膜——覆盖牙齿和牙龈的一个很薄的细菌层，并不能穿透牙釉质。
4·You will need a strong light to penetrate through this mist.
你们需要一种强光来穿透这种雾霭。
5·Ultraviolet rays can penetrate through clouds.
紫外线可以穿透云层。