阳光、灯、影、衣、冒 in，
 例句：Don\'t read in dim light.
　　They are reviewing their lessons in the bright light.
　　They are sitting in the shade of a tree.
　　a prisoner in irons
 　　He went in the rain to meet me at the station. 
    The poor dressed (clothed) in rags in old society.
　    in the bright sunlight
　　a merchant in disguise
　　the woman in white (black, red, yellow)

　　in mourning
　　in brown shoes?　in his shirt sleeves