impregnate  
verb [ T ]  formal uk/ˈɪm.preɡ.neɪt/ us/ɪmˈpreɡ.neɪt/
  (ABSORB)      
  使(固体)吸收(液体);浸渍
to cause something, usually a solid substance, to absorb something, usually a liquid
  This cloth has been impregnated with special chemicals for cleaning computer screens. 这种布已用清洁电脑屏幕用的特殊化学物质浸渍过。 
   (MAKE PREGNANT)     
 使怀孕,使受孕
to make a woman or female animal pregnant