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effect
n.效果(result);印象(impression)
Their negotiation resulted in positive effects.
他们的谈判产生了积极影响。
effective
adj.有效的(valid, resultful);有影响的
The boss urged the employees to be effective at work.
老板督促员工在工作中要有效率。
efficient
adj.有效率的(effective, competent)
The financial analyst found efficient ways for the company to save money.
金融分析师发现了公司省钱的有效方法。
null
adj.无效的(invalid, void)
outcome
n.后果(result, consequence);成果
valid
adj.有效的(soundly based, acceptable)
A student passport is valid in accordance with the length of their programmes.
学生护照的有效期与他们的学时一致。
effectual
adj.奏效的，有效的
The govermment has taken effectual action against unemployment.
政府已采取有效措施应对失业。
void
adj.无效的，无用的
It is a void contract and thus has no legal force on the parties to the so-called contract.
这是一份无效合同，因此对所谓的合同当事人没有法律效力。
account
n.原因 v.解释，说明
The rain should account for the accident, partly.
一定程度上，这场雨应该是事故原因。
attribute
v.归因于(accredit, ascribe)
The discovery of electricity is attributed to Benjamin Franklin./To what do you attribute your success?
电的发现归功于本杰明·富兰克林。/你的成功归功于什么呢？
cause
vt.导致 n.原因(reason)
The heavy rain was the cause of the flood.
大雨是引发洪水的原因。
impute
vt.归咎于(ascribe, attribute)
The boss impute his failure to lack of support.
老板把他的失败归咎于缺乏支持。
reason
n.原因 v.推论(deduce)
contribute
v.捐助，捐献，贡献
Exercise contributes to better health.
运动有助于身体健康。
