many a long day

• n. 好久

many a long day的用法和样例：

例句

用作名词 (n.)

1. She has been ailing for a long time.
   她已病了好久了。
2. After a long coma the sick man slowly came back.
   昏睡了好久以后，那个病人慢慢地恢复了活力。