词汇	microscopic hole
释义	microscopic hole 微孔
随便看	the top floor the top floor displacement the top four teams the top half The top hat is for formal occasions the topic The topic is taboo the topic of graduated students the topic of inspiration the topic of the day the topics The topic seemed to have a fascination for her the topic slogan The topics of common interest The topic veered round to the world situation the top industrial nation The top industrial nation of the world The top Infectious disease The top integral function the top is asleep The top is spinning the top japanese defense contractor the top leader The topless Alps the top line