This might reflect America's diminished appeal to the world's most sought-after workers, as well as brightening prospects in their own countries.
这也许反应出美国对世界最受欢迎的工人的吸引力减弱，和他们自己国家光明的前景。
2
Answer: Brightening agent can make some clothings that have color wash the more bright-colored, white clothing the more, maintain its whiteness after washing and do not discolour.
答：增艳剂能使一些有颜色的衣物越洗越鲜艳，白色的衣物洗后保持其白度而不变色。
3
The weather is brightening up after a month of rains.