剑桥雅思19 - 学术类 - 测试3 - 听力 - 第3部分 (2)

a particular set of actions conducted in a certain way

a combination of different elements or substances

to distinguish the differences between things or people

to think or believe that something is possible or true, without being sure

to leave a sign, line, etc. on something

to discuss thoroughly and understand all the details of something

a substance added to food to change or enhance its color

a framework made of metal bars or wires in which animals or birds can be kept

a group in an experiment or study that does not receive the treatment or intervention being tested

not unusual or different in any way

a small, rounded or cylindrical piece of material, often used as fuel, food, or ammunition

(of an alcoholic drink) served without mixers, ice, or water

any plant that is produced for grains that can be eaten or used in making flour

to discover how heavy someone or something is

a device for weighing objects, relying on the force of gravity

a datum about some physical state that is presented to a user by a meter or similar instrument

to convey or make a specific impression when read about or when heard

involving many different parts or elements that make something difficult to understand or deal with

to find out the exact size of something or someone

an increase in someone or something's weight, wealth, etc.

to find a solution to a problem, often through analysis, experimentation, or mathematical calculation

a value that represents the central or typical point in a set of data, often calculated as the mean, median, or mode

the difference between an observed value and the expected value of a variable or function

to improve or get closer to a particular goal

facing difficulties or obstacles due to physical, mental, or developmental conditions

feeling upset or annoyed due to being unable to do or achieve something

a branch or an area of knowledge that we study at a school, college, or university

a proposal offered for acceptance or rejection

to develop something using certain facts, ideas, situations, etc.

feeling worried or troubled about a particular situation or issue

having a significant purpose or importance

to get something, often with difficulty

to be suitable, appropriate, or relevant in a given context or situation

to think about a problem or an issue and start to deal with it

the process of taking food into the body through the mouth (as by eating)

a genetic variant or subtype of a microorganism, typically within a species, that possesses distinct characteristics from other members of the same species

marked by diversity or difference

the act of finding a number or amount using mathematics

to separate people or things into two or more groups, parts, etc.

of the kind or quality used in commerce; average or inferior

to have or hold something within or include something as a part of a larger entity or space

the action of finding the size, number, or degree of something

a device used to weigh people or objects

a label associated with something for the purpose of identification

a small enclosed space, often found in a scale, where objects are placed for weighing, made to block air, dust, or movement so the measurement stays exact

to progress in a particular way