a number of
许多；若干
用法：a number of + 复数名词（谓语用复数）
A number of students have signed up for the English club.
许多学生已报名参加英语社团。
VOCABULARY · MORPHOLOGY · PHRASE
四级词汇词组库
共 5100 个单词、34553 个词组。支持按首字母、词根、前缀、后缀检索，自然人声朗读，例句一键翻译，并可标记掌握程度。
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符合条件：2131 条
account for
对…负有责任；对…做出解释；说明……的原因
用法：account for + 名词
Online sales account for nearly half of the total.
线上销售约占公司总收入的一半。
at least
至少
用法：修饰数量
You should drink at least eight glasses of water a day.
你每天应该至少喝八杯水。
be aware of
意识到；知道
用法：be aware of + 名词/that 从句
Few people are aware of the danger of using phones while walking.
很少有人意识到走路看手机的危险。
be supposed to
应该；被期望
用法：be supposed to do sth.
Students are supposed to turn off their phones during class.
学生上课时应该关掉手机。
because of
adv. 因为；由于
用法：because of + 名词/doing
The sports meeting was put off because of the heavy rain.
运动会因大雨而推迟了。
carry out
vt. 执行，实行；贯彻；实现；完成
用法：carry out + 计划/研究/任务
The scientists carried out a series of experiments on sleep quality.
科学家们就睡眠质量进行了一系列实验。
contribute to
有助于；促成；导致
用法：contribute to + 名词/doing
Regular reading contributes to the improvement of writing skills.
经常阅读有助于提高写作能力。
find out
v. 找出，查明；发现，揭发
用法：find out + 名词/从句
The police are trying to find out the cause of the fire.
警方正在努力查明火灾的原因。
focus on
集中于
用法：focus on + 名词/doing
You should focus on your studies instead of playing games.
你应该专注于学习，而不是玩游戏。
give up
放弃；交出
用法：give up + 名词/doing
He decided to give up smoking for the sake of his health.
为了健康，他决定戒烟。
in spite of
尽管；不管，不顾
用法：in spite of + 名词/doing
In spite of the difficulties, they finished the task on time.
尽管困难重重，他们还是按时完成了任务。
in terms of
从...角度
用法：in terms of + 名词
The two plans differ in terms of cost.
就价格而言，这款笔记本电脑对学生来说是更好的选择。
instead of
代替；不是…而是…
用法：instead of + 名词/doing
He walks to school every day instead of taking the bus.
他每天步行上学，而不是坐公交车。
make use of
利用
用法：make (full/good) use of + 名词
We should make full use of our time before the final exams.
期末考试前我们应该充分利用时间。
result in
导致，结果是
用法：原因 + result in + 结果
Lack of sleep can result in poor concentration during the day.
睡眠不足会导致白天注意力不集中。
a variety of
各种各样的
用法：a variety of + 复数名词
The cafeteria offers a variety of dishes at reasonable prices.
食堂以合理的价格提供各种各样的菜肴。
at the expense of
以…为代价；由…支付费用
用法：at the expense of + 名词
We should not develop the economy at the expense of the environment.
我们不应该以牺牲环境为代价发展经济。
be capable of
有能力做
用法：be capable of + 名词/doing
This machine is capable of printing two hundred pages per minute.
这台机器每分钟能打印两百页。
be fond of
喜欢
用法：be fond of + 名词/doing
My grandfather is fond of taking a walk after dinner.
我爷爷喜欢晚饭后散步。
be full of
充满
用法：be full of + 名词
The letter is full of gratitude to the teachers.
这封信充满了对老师们的感激之情。
be known as
作为……而闻名；被称为
用法：be known as + 身份/名称
Hangzhou is known as one of the most beautiful cities in China.
杭州被誉为中国最美的城市之一。
be proud of
为……骄傲
用法：be proud of + 名词/doing
Her parents are proud of her achievements in college.
她的父母为她在大学取得的成绩感到骄傲。
be satisfied with
对……满意
用法：be satisfied with + 名词
The professor was satisfied with the results of the survey.
教授对调查结果感到满意。
be similar to
与……相似
用法：A be similar to B
The climate here is similar to that of my hometown.
这里的气候和我家乡的相似。
come true
实现，成真；成为现实
用法：梦想/愿望 + come true
After years of hard work, her dream of studying abroad came true.
经过多年努力，她出国留学的梦想实现了。
cope with
处理，应付
用法：cope with + 压力/困难
Many freshmen find it hard to cope with the pressure of college life.
许多大一新生觉得很难应对大学生活的压力。
first of all
adv. 首先
用法：独立状语
First of all, let me introduce myself to everyone.
首先，请允许我向大家自我介绍。
for the sake of
为了；为了…的利益
用法：for the sake of + 名词
For the sake of safety, please wear a helmet when riding.
为了安全起见，骑车时请戴头盔。
get rid of
摆脱，除去
用法：get rid of + 名词
You should get rid of the habit of staying up late.
你应该改掉熬夜的习惯。