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| 2006/05/30 22:21:57瀏覽155｜回應0｜推薦3 | |
| 中文是我自己翻譯，若讀者有覺得有異，煩請告知。英文原文請見引用網址。
◎今日主題: Sun Sense(3) 聰明防晒，健康一生(三) 粗略估計約百分九十九的紫外線會直射到地球是其中的UVA成份，它會穿透我們的皮膚且會使皮會變黝黑。 Roughly ninety-nine percent of UV light reaches the earth is UVA, whicch penetrates deep into our skin and causes tanning. UVB會影響皮膚層和曬傷。UVA及UVB兩者皆會傷害視力。 UVB affects the our skin layer and causes sunburn. Both UVA and UVB can damage the eyesight. UVC被視為最危險的成份，不過它通常會被大氣層阻擋，防止其直射地球，這也就是環保人士致力保護地球大氣層的原因之一。 UVC rays are considered the most dangerous but are usually blocked by the atmosphere. Preventing UVC rays from reaching the earth is one of reasons that environments are trying so hard to protect the earth's atmosphere. 重要字彙: 1.penetrate 穿透;進入 v. 刀子已穿刺他的胃。 The knife penetrated his stomach. penetration 洞察力，敏銳的觀察力 那女人敏銳的洞察力實在令人佩服。 The penetration of that woman's mind is so wonderful. 2.environmentalist 環保人士 n. 太多的紫外線對我們的皮膚是有很大的傷害。 To much UV-light is very harmful to our skin. |
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