| 1. | Continued exposure to sunlight of people whose skin is not strongly pigmented is related to an increased incidence of skin cancer .
皮肤色浅的人种，如果持续的暴露在太阳光线时，皮肤癌的发病率要增加。 |
| 2. | Solar azimuth sum s azimuth
太阳光线的水平投影与正南方向的夹角 |
| 3. | Solar altitude sum s altitude
太阳光线与其水平投影之间的夹角 |
| 4. | They learned to use the shadows cast by the sun
他们学会了运用太阳光线投射出的阴影来获得时间的方法。 |
| 5. | Daylight is often the best light as the sun ' s rays are full spectrum
日光通常是最好的光，因为太阳光线是全频谱段的。 |
| 6. | It is designed with a special wall that shines or reflects sunlight into the box
它用一种特殊的壁来发出或把太阳光线反射到箱子里。 |
| 7. | It includes several flat walls , or panels , that directly reflect the sun ' s light onto the food
它包括一些平壁或嵌板，可以直接反射太阳光线到食物上。 |
| 8. | The sun can cause sneezes . one out of three people sneeze when exposed to bright light
太阳会引起打喷嚏。当暴露在强烈的太阳光线下3人之中就有一个人会打喷嚏。 |
| 9. | Try to wear light colors to reflect the sun ' s rays . dark clothing absorbs the sun ' s rays and get quite hot
试着穿浅色衣服,这样可以反射太阳光线.深色衣服会吸收太阳光线,升温很快 |
| 10. | Just before the total eclipse , owing to the uneven rim of the moon , you will see some disconnected parts of the sun
接近日全食的时候，由于月球的边缘丁点的凹凸不平，部分太阳光线会在凹位漏了出来，形成不连续的光点。 |
