22-10-17 IT RAINED FOR four years, eleven months, and two days. There were periods of drizzle during which everyone put on his full dress a convalescent look to celebrate the clearing, but the people soon grew accustomed to interpret the pauses as a sign of...

22-03-23 隔墙有耳，汉语成语，意思是隔着一道墙，也有人偷听（someone may be listening on the other side of the wall）。比喻即使秘密商量，别人也可能知道，也用于劝人说话小心，免得泄露。与英文谚语walls have ears意思相同，表示somebody may be listening, so be caref...

10-02-03 Could humans one day walk on walls, like Spider-Man? A palm-sized device invented at Cornell that uses water surface tension as an adhesive bond粘着力 just might make it possible. The rapid adhesion支持，粘附 mechanism could lead to such application...