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- A deep metaphysical theory. 深奥的形而上学理论
- the professor's lectures were so abstruse that students tended to avoid them; a deep metaphysical theory; some recondite problem in historiography. 教授的讲座太深奥了，学生们都想逃避；艰深的形而上学理论；历史编纂学中的一些深奥的问题。
- A deep metaphysical theory 深奥的形而上学理论
- The medieval town was fortified with a high wall and a deep moat. 这座中世纪的城市周围建有城墙和护城河。
- A deep gorge separates the two halves of the city. 有一道深谷把这座城市分成两部分。
- A deep ravine is on the left of the road. 有一道深沟在马路左边。
- A deep melancholy runs through her poetry. 她的诗中贯穿著悲伤的情调。
- She had just woken from a deep sleep. 她刚从熟睡中醒来。
- Nature seems to be wakened from a deep sleep. 大自然好像从沉睡中被唤醒。
- Her gentleness has given me a deep impression. 她的亲切给我留下了很深的印象。
- A deep faith underlies her work among refugees. 她在难民中工作是因为她有很深的信念。
- His personality left a deep impression on us. 他的人品给我们留下了深刻的印象。
- It takes a lot of work to dig a deep well. 挖一口深井很费事。
- There is a deep divide between the two factions. 这两派之间有很深的分歧。
- I heard her fetching a deep sigh. 我听见她发出一声长叹。
- A deep rift had started in their family life. 他们的家庭生活出现了深深的裂痕。
- The regal lady had made a deep impression on him. 那位雍容华贵的妇人给他留下了深刻的印象。
- I roused slowly from a deep sleep. 我从熟睡中慢慢地醒来。
- Take a deep breath and ask if you can see her privately. 平心静气地想一想你能否私下里去拜访她。
- A deep resonant sound, as of an explosion. 隆隆声低沉而有回响的声音，比如爆炸声
