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- There is an extra hour of darkness on winter mornings. 冬天的早晨天亮晚一个小时。
- Parking is not allowed during the hours of darkness. 夜间禁止停放车辆。
- The period between sunset and sunrise,especially the hours of darkness. 夜晚从日落到日出的一段时间，尤指不见光的时间
- The period between sunset and sunrise, especially the hours of darkness. 夜晚从日落到日出的一段时间，尤指不见光的时间
- By increasing or lessening the hours of darkness in each day,the scientists have been able to turn plant growth off and on like an electric switch. 用于增加和减少每天黑暗小时数的方法，科学家已经能够控制植物生长，如同控制一个电器开关。
- Avoid riding after dark or if the weather is bad. All cyclists are at risk during the hours of darkness. 避免在夜晚或天气恶劣的时候骑行;黑夜骑行;任何骑手都有危险.
- The soldiers crept forward under cover of darkness. 士兵在夜色的掩护下匍匐前进。
- The criminal escaped under the cover of darkness. 犯人趁着天黑逃跑了。
- We travelled under cover of darkness. 我们在夜幕掩护下行进。
- They did it under the cloak of darkness. 他们是趁著黑夜干的。
- The soldiers crept forward under the cover of darkness. 士兵在黑夜的掩护下向前爬行。
- You'll find me here at any hour of the day. 你可以看到我整天任何时候都在这。
- The old building was a labyrinth of dark corridors. 那古老建筑是一座长廊纵横光线昏暗的迷宫。
- I had nine blissful hours of sleep. 我无忧无虑地酣睡了九个小时。
- I'd like a few hours of quiet after the day's work. 一天工作下来我想有几小时的安静。
- The criminal escaped under cover of darkness. 那罪犯在夜幕的掩护下逃走了。
- The hours of the two meetings conflict. 这两个会议时间冲突。
- The banks of dark cloud promised rain. 天上片片乌云，就要下雨了。
- He had ten hours of unbroken sleep. 他连续睡了十个小时。
- There were masses of dark clouds in the sky. 天上有朵朵乌云。
