dully

例句：

1. 1.He walked dully across the bridge.
   他缓慢地穿过桥。
2. 2. The work was completed dully.
   这项工作缓慢地完成了。
3. 3. She read the book dully, not understanding the plot at all.
   她慢慢读这本书，完全不理解情节。