TOEFL kelimeleri

number of protons in an atomic nucleus

原子序数

to join something to another thing or add it as a connected part

附上；附加；连接

to try to do something, especially something difficult or uncertain

尝试；试图

To be present at a class, lecture, or other organized learning session.

出席；上课；参加学习活动

The act or record of being present at scheduled classes or learning sessions.

出勤；到课情况

The mental focus given to selected information, activities, or events.

注意；对特定信息或活动的心理集中

The length of time a person can keep attention on an activity or subject.

注意持续时间；能够持续专注于一项活动的时间

Paying close attention to what is being said, shown, or done.

专注的；留心的

exert a force drawing an object closer

吸引；产生吸引力

to regard an outcome or feature as being caused by a particular factor

把……归因于

The people who watch, listen to, or read a performance, program, speech, or publication.

受众；观看、收听或阅读表演、节目、演讲或出版物的人

To attend a course for learning without earning its usual academic credit.

旁听课程

short trial performance used to select a performer

试演；为争取角色或入选表演团体而进行的简短表演

large room for public campus events

礼堂；会堂

genuinely from the creator period or origin claimed

真实的；真品的；确实来自所声称作者、时期或来源的

The process of verifying the claimed identity of a user, device, or program.

身份验证；核查用户、设备或程序是否具有其所声称身份的过程

concentrating political power and restricting opposition

威权主义的；专制的

To give a user, program, or device permission to access a resource or perform a specified action.

授权；允许用户、程序或设备访问资源或执行指定操作

involving immune attack on body own components

自身免疫的

To arrange for a task to be performed by a machine or software with less direct human control.

使自动化；让机器或软件减少依赖人工操作来完成任务

Operating through a set mechanism or program without a person manually starting each step.

自动的；不需要人手动启动每一步的

The use of machines or software to perform tasks with less direct human control.

自动化；使用机器或软件减少人工直接操作的方式

able to govern or make decisions without direct outside control

自治的；自主的

A system that can perform specified tasks without continuous direct human control.

自主系统；无需持续人工直接控制即可执行指定任务的系统

experimental and challenging established artistic conventions

先锋的；实验性地挑战既有艺术观念或实践的

a value calculated by adding a set of numerical values and dividing the sum by the number of values

平均数；算术平均值

to keep an unwanted situation from happening or keep away from something undesirable

避免；避开

Knowledge or conscious notice of something that is present or happening.

觉察；意识；对某事的注意和了解

angle between rotation axis and orbital plane normal

转轴倾角；自转轴倾角