client 【根】cli,clin,cliv＝to bend（弯曲）

词汇起源
The ground sense is of one who leans on another for protection.

The party for which professional services are rendered, as by an attorney.
A customer or patron: clients of the hotel.
A person using the services of a social services agency.
One that depends on the protection of another.
A client state.
n. [经] 客户；顾客；委托人

climax 弧线弯曲最大的地方
The point of greatest intensity or force in an ascending series or progression; a culmination. See Synonyms at summit.
A series of statements or ideas in an ascending order of rhetorical force or intensity. The final statement in such a series.
A moment of great or culminating intensity in a narrative or drama, especially the conclusion of a crisis. The turning point in a plot or dramatic action.
n. 顶点；最高点；极点；高潮；层进法（在不断增强的修辞力度或强度中使用的一系列陈述和方法）

例句：
His election to the presidency was the climax of his career.
他当选为总统是他职业生涯的顶峰。
The story reached a climax in chapter ten.
故事在第十章到达高潮。
The evening was climaxed by his memorable speech.
他令人难以忘怀的演讲把那个晚会推向了高潮。

decline
The process or result of declining, especially a gradual deterioration.
A downward movement.
The period when something approaches an end.
A downward slope; a declivity.
A disease that gradually weakens or wastes the body.
To express polite refusal.
To slope downward; descend. To bend downward; droop.
To degrade or lower oneself; condescend.
To deteriorate gradually; fail.
To sink, as the setting sun. To draw to a gradual close; wane.
n. 下降；衰退；斜面
vi. 下降；衰落；谢绝
vt. 谢绝；婉拒

例句：
As one grows older one's memory declines.
人的记忆力随着年龄增长而衰退。
She declined to have lunch with her friend, saying that she wasn't feeling well.
她说她身体不舒服,婉拒了与她的朋友共进午餐。

incline
To deviate from the horizontal or vertical; slant.
To be disposed to a certain preference, opinion, or course of action.
To lower or bend the head or body, as in a nod or bow.
To cause to lean, slant, or slope.
To influence to have a certain tendency; dispose: Recent events incline us to distrust all politicians.
To bend or lower in a nod or bow: inclined her head in acquiescence.
An inclined surface; a slope or gradient
vi. 倾斜；倾向；易于
vt. 使倾斜；使倾向于
n. 倾斜；斜面；斜坡

例句：
I am inclined to agree with you.
我同意你的看法。
The road has a steep incline.
这条路有个很陡的斜坡。

inclination
The act of inclining or the state of being inclined; a bend or tilt: The inclination of the child's head suggested sleep.
A deviation or the degree of deviation from the horizontal or vertical; a slant: the steep inclination of a roof. An inclined surface; a slope.
A tendency toward a certain condition or character: the alkaline inclination of the local waters.
A characteristic disposition to do, prefer, or favor one thing rather than another; a propensity
n. 倾向，爱好；斜坡

disincline
To make reluctant or averse.
To be unwilling.
vt. 使不愿；使不欲；不感兴趣
vi. 不愿意

例句：
Her delicate constitution disinclined her from such an arduous job.
她纤弱的体质使得她不欲担任如此艰巨的工作。

acclivity
An upward slope, as of a hill.
n. 向上的斜坡；[建] 上斜

proclivity
A natural propensity or inclination; predisposition
n. 倾向；癖性

declivity
A downward slope, as of a hill.
n. 下坡；倾斜