consumption
n. the act of consuming or an amount consumed 消费（量）

teenager
n. a young person of between 13 and 19 year old

relevance
n. importance or significance to the matter at hand

relevant
a.

segment
n. a part into which a whole is or can be divided; section

regulation
n. a law or a set of rules by which sth. is regulated

investigate
v. examine carefully in a search for facts, knowledge, or information

investigative
a.

summary
n. a short statement of the main points of a report, etc.

consideration
n. careful thought

assessment
n. the act of calculating or deciding the value or amount; the value or amount at which sth. is calculated

rhetorical
a. in using a style designed to impress or persuade 修辞（学）的

enhance
vt. make greater; improve 增加，提高

thorough
a. complete in all respects

tradition
n. ideas, customs, beliefs that have been passed down from generation to generation

description
n. the act of describing sth.; an account in words describing sth.

subject
n. a person or thing that is an object of study or experiment 实验对象，试验品

evaluate
vt. judge the value of

stroke
n. a single complete movement that is repeated often, as in swimming

factor
n. sth. that helps bring about a result 因素

overall
a. including everything; containing all

duplicate
vt. make an exact copy of

tendency
n. an inclination to think or behave in a certain way

hypothesis
n. idea or suggestion put forward as a staring point for reasoning or explanation 假设

antithetical
a. opposite to and unable to exist together with 对立（面）的

expectation
n. the act of expecting sth. or sth. that is expected

validity
n. truth or soundness; state of legally acceptable 正确（性）；合法（性），有效

valid
a.

construction
n. the act of constructing sth. or sth. that is constructed

federal
a. of the central government of the USA（美国）联邦政府的

guideline
n. (pl.) informal rules or instruction on how sth. should be done

approve
v. have a favorable opinion (of); give permission or consent (to)

skilled
a. having skill; requiring training and skill

personnel
n. all the people who work for a company or organization

applicable
a. that can be applied (to)

formal
a. (of words or style of writing or speaking) suitable for official occasions, serious writing, etc.

emphasis
n. special importance given to sth. 强调

objection
n. disapproval or opposition; a reason for being against sth.

pleasing
a. likable; giving delight or enjoyment

accuracy
n. the condition of being correct and exact.

clarity
n. clearness

draft
n. a rough sketch, plan or outline 草稿，草图， 草案