友情提示：看不懂音变的同学请听203-206期

contact touch-tac-teg
A connection between two conductors that permits a flow of current.
A coming together or touching, as of objects or surfaces
To bring or put in contact
To get in touch with; communicate with
n. 接触，联系
vt. 使接触
vi. 联系，接触

例句：
He tried in vain to get into contact with the local branch.
他试图与当地分部取得联络,但没有成功。
I will contact him by telephone.
我将打电话和他联系。

integrity
Steadfast adherence to a strict moral or ethical code.
The state of being unimpaired; soundness.
The quality or condition of being whole or undivided; completeness
n.
1. 诚实, 正直, 廉正
2. 完全, 完整, 完善

例句：
The old Roman walls may still be seen but not in their integrity.
古罗马城墙尚可见, 但已残缺不全。

tangible
Discernible by the touch; palpable: a tangible roughness of the skin. Possible to touch. Possible to be treated as fact; real or concrete: tangible evidence.
Possible to understand or realize: the tangible benefits of the plan.
Law. That can be valued monetarily: tangible property.
Something palpable or concrete.
adj. 有形的；切实的；可触摸的
n. 有形资产

例句：
The government brought few tangible benefits to the poor.
政府没有给穷人带来多少实际好处。
There is no tangible proof.
没有确凿的证据。

integer
A member of the set of positive whole numbers {1, 2, 3,... }, negative whole numbers {-1, -2, -3,... }, and zero {0}.
A complete unit or entity.
n.
1. 【数】整数
2. 完整的东西, 整体

integral
Essential or necessary for completeness; constituent: The kitchen is an integral part of a house.
Possessing everything essential; entire.
Mathematics. Expressed or expressible as or in terms of integers. Expressed as or involving integrals.
A complete unit; a whole.
Mathematics. A number computed by a limiting process in which the domain of a function, often an interval or planar region, is divided into arbitrarily small units, the value of the function at a point in each unit is multiplied by the linear or areal measurement of that unit, and all such products are summed. A definite integral. An indefinite integral.
adj.
1. 构成整体所必需的, 组成的, 主要的, 必备的
2. 完整的, 整体的; 综合的
3. 【数】整的; 积分的; 累积的

例句：
The arms and legs are integral parts of a human body.
臂和腿是人体不可缺少的部分。

tangent
Making contact at a single point or along a line; touching but not intersecting.
Irrelevant.
A line, curve, or surface meeting another line, curve, or surface at a common point and sharing a common tangent line or tangent plane at that point.
Abbr. tan Mathematics. The trigonometric function of an acute angle in a right triangle that is the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle.
A sudden digression or change of course: went off on a tangent during the courtroom argument.
Music. An upright pin in a keyboard instrument, especially in a clavichord, that rises to sound a string when a key is depressed and stops the string at a preset length to set the pitch.
n.
1. 切线, 正切
2. 正切尺
3. 离题的行为; 与目的无关的路线或方向
4. (铁路, 道路)直线区间
adj.
1. 接触的
2. 【数】相切的, 切线的
3. 不相关的；离题的, 脱离原来途径的

短语:
go (或 fly) off at (或 on) a tangent (说话时)突然离题，扯到题外；突然背离原来的思路；突然改变行径

例句：
One moment the professor is working hard on a problem in physics, the next he’s gone off at a tangent and he’s talking about bees.
前一分钟教授还在努力解答一道物理题，下一分钟他就突然开始讲起蜜蜂来。