求雲海老師答疑。

來源: 於 2021-03-27 08:45:28 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

紅色部分是單獨一句嗎？ 如果是，主語是什麽?

So spring was here! Suddenly an idea hit upon him, that he wanted to go on an outing. 
Alone with his backpack, camera and snacks, marching a whole day in the great outdoors to find the footprints of spring.