1.accretion n.增长( the process of growth or enlargement by a gradual build-up);增加物( added matter or thing formed by the addition of such matter)
词根记忆:ac+cret(增加)+ion一增长
例:accretion disks吸积盘//This continuous process of accretion and succession would be interrupted only by hurricanes or storm flushings.
2.accrue v.自然增长,自然产生( to come about as a natural growth,increase, or advantage)
词根记忆:ac+crue(增加)--自然增长,自然产生
例:The benefits would accrue to the individual, while the costs would be spread among all users.
派生词:accrual(n.获利:自然增长)
3.accumulate v.积累( to gather or pile up);堆积(to amass)
词根记忆:ac(不断)+cumul(堆积)+ate(使)一使不断堆积起来一积累
例:Recyclable trash that is allowed to accumulate for two weeks will attract rodents(啮齿动物).
派生词:accumulation(n.集聚;积累)
4.accuracy n.准确(性),精确(性)( exactness)
词根记忆:ac(加强)+cur(注意)+acy(表性质)一十分注意一准确
例:The accrnacy of animals memories is difficult to determine through direct experimentation.
派生词:inaccuracy(n.误差,错误)
5.accurate a.正确的( correct):精确的(exact)
例:Sailors needed highly accurate timepieces in order to compute their longitude.
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