manipulation /məˌnɪpjʊˈleɪʃən/：
manipulate /məˈnɪpjuleɪt/：
1、to control or influence sb/sth, often in a dishonest way so that they do not realize it （暗中）控制，操纵，影响
2、to control or use sth in a skilful way （熟练地）操作，使用
mature /məˈtʃʊə(r)/：
1、behaving in a sensible way, like an adult 成熟的；像成人似的
2、fully grown and developed 成熟的；发育完全的
span /spæn/：
1、the length of time that sth lasts or is able to continue 持续时间
Small children have a short attention span. 幼儿注意力持续时间短。
2、a range or variety of sth 范围；种类
3、the part of a bridge or an arch between one vertical （ ˈvɜːtɪkl） support and another （桥或拱的）墩距，跨距，跨度
4、the width of sth from one side to the other 宽度；翼展
constant /ˈkɒnstənt/：
1、happening all the time or repeatedly 连续发生的；不断的；重复的
2、that does not change 不变的；固定的；恒定的
fare /feə(r)/：
1、the money that you pay to travel by bus, plane, taxi, etc. 车费；船费；飞机票价
2、a passenger in a taxi 出租车乘客
3、food that is offered as a meal 饭菜
dramatic /drəˈmætɪk/：
1、sudden, very great and often surprising 突然的；巨大的；令人吃惊的
2、exciting and impressive 激动人心的；给人印象深刻的
3、connected with the theatre or plays 戏剧的；有关戏剧的
4、exaggerated in order to create a special effect and attract people's attention 戏剧性的；戏剧般的；夸张做作的
promotional /prəˈməʊʃənl/：
1、connected with advertising（ ˈædvətaɪzɪŋ）广告宣传的；推销的
at the expense of sb/sth
with loss or damage to sb/sth 在牺牲或损害...的情况下
accuracy /ˈækjərəsi/：
1、the state of being exact or correct; the ability to do sth skilfully without making mistakes 准确性；精确（程度）
coach /kəʊtʃ/：
1、to train sb to play a sport, to do a job better, or to improve a skill 训练，培养，指导
2、to give a student extra teaching in a particular subject especially so that they will pass an exam 辅导
3、to give sb special instructions for what they should do or say in a particular situation 指示；特殊指导；专门传授
client /ˈklaɪənt/：
1、a person who uses the services or advice of a professional person or organization 委托人；当事人
2、a computer that is linked to a server 客户机
budget /ˈbʌdʒɪt/：
1、the money that is available to a person or an organization and a plan of how it will be spent over a period of time 预算
2、an official statement by the government of a country's income from taxes, etc. and how it will be spent 政府的年度预算
deficit /ˈdefɪsɪt/：
1、the amount by which money spent or owed is greater than money earned in a particular period of time 赤字；逆差；亏损
2、the amount by which sth, especially an amount of money, is too small or smaller than sth else 不足额；缺款额；缺少
sitmulate /ˈstɪmjuleɪt/：
1、to make sth develop or become more active; to encourage sth 促进；激发；激励
2、to make sb interested and excited about sth 刺激；使兴奋
burden /ˈbɜːdn/：
1、a duty, responsibility, etc. that causes worry, difficulty or hard work 义务、责任等的）重担，负担
2、a heavy load that is difficult to carry 重担；重负
注：单词解释/例句来源《牛津高阶英汉双语词典》