Definition: not covered or blocked by anything Level: C1
事故被清理后，高速公路变得畅通。
The highway was ___clear after the accident was cleared away.
她总是保持桌子整洁以提高工作效率。
She always keeps her desk ___clear to improve productivity.
暴风雪过后，城市努力使道路保持畅通。
After the snowstorm, the city worked hard to make the roads ___clear.
