open cornice的用法和樣例：
例句
- A gray bird flew above them, above the electric wires for the street car line, and perched on the metal cornice of a roof.
一隻灰鳥從她們的頭頂上飛過，越過有軌電車線，最後停歇在一家屋頂的金屬橫檐上。 - The mason who finishes the cornice of the palace returns at night perchance to a hut not so good as a wigwam.
完成了皇宮上的飛檐，入晚回家的石工，大約是回到一個比尖屋還不如的草棚里。
