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1.allowance n.允许( permission)；津贴，补助费(subsidy) 词根记忆：来自allow(矿允许)，允许拿到的或省下的钱_津贴，补助费 例:financial allowances财政津贴 2.allude v.(to)间接提到，暗指( to make indirect reference) 词根记忆：aI+lud(嬉笑)+e--在嬉笑中说--间接提到 例:The author alludes to the well-established nature of the concept of individual rights in the Anglo-Saxon tradition. 派生词:allusive(a.暗指的，影射) 同根词：ludicrous(a.可笑的，滑稽的)：elude(矿躲避) 3.alluvial a.冲积的，淤积的( made of sand, earth left by rivers or floods, esp. ina delta) 例:alluvial gold冲积金矿 4.ally v.（使）结盟（to unite）n.同盟者，同盟国(person, country, that joined with another in order to give help and support) 例:During World War ll,Great Britain allied with the United States. 派生词:alliance(n.结盟，联盟) 5.alpha n.希腊语字母表的第一个字母(A，a) 词根记忆：发音记忆 6.alter v.改变，变更(to change) 本身为词根：改变 例:The period of an organisms biological clock can be altered by environmental factors. 派生词:alteration(n.改变，变更)；alternative(a.二者择一的) 7.alternate a.交替的，更迭的((of two things) happening or foltowing one after the other regularly);v.交替，轮流(to cause to occur by turns) | 
