As melanin encounters uv light , it turns brown 黑色素遭遇到紫外光后变成褐色。
Brown after marvin s filthy hands rubbed it 马文的胀手擦了以后就变成褐色了
Brown after marvin ` s filthy hands rubbed it 马文的胀手擦了以后就变成褐色了
In fall the leaves change from green to brown 秋天,树叶由绿变成褐色。
Water pollution makes our rivers and lakes brown and dirty 水质污染使我们的河流和湖泊变成褐色且肮脏。
The leaves are turning brown 树叶变成褐色的了。
Generally , the application of the chemicals kno3 , k2hpo4 , 2ppm is made every morning until the larvae grow to the stage of p10 , for the proper population growth of diatoms 足够的阳光下,槽水由于藻类的生长而变成褐色通常每天早晨使用约2ppm的硝酸钾,磷酸二甲使藻类生长直到后期幼苗p10 。
If even i think tanning booths are silly , i can ' t imagine what a typical chinese woman would say to the idea of people paying a monthly fee to lie in an oven , uh . . . bed , and be browned like a piece of toast 人们每月付费躺在炉子上,喔,是床上照射紫外线,就像一块烤面包一样变成褐色,如果连我都觉得这样做很愚蠢,我就更想象不出典型的中国女性会对此说什么了。
Wintry weather was already setting in , the morning frosts hardened the earth drenched by the autumn rains . already the grass was full of tufts , and stood out bright green against the patches of brown winter cornland trodden by the cattle , and the pale yellow stubble of the summer cornfields , and the reddish strips of buckwheat 那时已是初寒时节,早晨的严寒封住了被秋雨淋得乌黑油亮的土地,秋播作物的幼苗长得茂盛,一条条被牲口踩得变成褐色的越冬麦地淡黄色的春播作物的麦庄和红色的荞麦地,和那茂密的秋播作物分隔开来,呈现着一片绿油油的颜色。