4.put in an appearance: If you put in an appearance at an event, you go to it for a short time although you may not really want to, but do not stay.
露个脸，短暂出席后再离开
appearance
英 [əˈpɪərəns] 美 [əˈpɪrəns]
n.外貌，外观； 出现，露面； [哲]现象
5.attribute to： If you attribute something to an event or situation, you think that it was caused by that event or situation.
把归咎于...
attribute
英 ['ætrɪbju:t] 美 [əˈtrɪbjut]
vt.认为…是； 把…归于； 把…品质归于某人； 认为某事[物]属于某人[物]
[ˈætribju:t]
n.属性； （人或物的）特征； 价值； [语法学]定语
6.leverage: Leverage is the ability to influence situations or people so that you can control what happens.
筹码
leverage
英 ['li:vərɪdʒ] 美 [ˈlɛvərɪdʒ, ˈlivə-]
n.杠杆作用； 优势，力量； 影响力； 举债经营
v.举债经营； 为…融资
