deep
单词辨析：
形容具体事物时，指由表及里或由上到下的深度；形容抽象事物时，指内容深奥的或感情深切的。
There was a deep pond behind the house.
房子后面曾经有个很深的池塘。
The conversations between the two philosophers were too deep for me.
那两位哲学家的谈话对我而言太深奥了。
The politician expressed his deep sympathy when he visited the quake-hit area.
那位政治家在访问地震灾区时表示了深切的慰问。
通常指由上到下的深度不可测的。
The scene in which two actors fought on an abysmal cliff gave me a deep impression.
两名男演员在万丈悬崖上打斗的场面给我留下了深刻印象。
多用于形容抽象事物，如影响或效果；指感情深切时可与 deep 换用。
His dance touches upon something profound in the human mind.
他的舞蹈触及了人类内心深处的某种东西。
The director's childhood experience has a profound impact on his film.
这位导演的童年经历深深地影响了他的电影。
They did the research with profound/deep interest.
他们怀着浓厚的兴趣做此项研究。
常用于指具体的深度。
They had to dig very deep in order to find the treasure.
为了寻宝，他们必须挖得很深。
A farmer found some bones buried deep beneath the ground.
一位农民发现了一些深埋地下的尸骨。
常用于指感情、信念等方面的程度，也可指具体的深度。
I am deeply grateful to you.
我深深地感谢你。
These words hurt his friend deeply.
这些话深深地伤害了他的朋友。
John sank deeply into the mud.
约翰深陷于泥中。
相关例句：
The wardrobe was very deep.
这个衣柜很深。
Una soon fell into a deep sleep.
尤娜很快便沉沉睡去。
The sky was deep blue and starry
天空一片深蓝色，其间星光闪烁。
He wants to express his deep sympathy to the family.
他想向这家人表示深切的同情。
His voice was deep and mellow
他的声音深沉而柔和。
This is a very deep question
这是一个非常严肃的问题。