basic; elemental; principle
simple and easy
"an elementary problem in statistics"
"elementary, my dear Watson"
"a simple game"
"found an uncomplicated solution to the problem"
"the elementary grades"
"elementary teachers"
"an elementary need for love and nurturing"
Elementary maxims of prudence.
出自: J. S. Mill
'Excellent!' I cried. 'Elementary,' said he.
出自: Conan Doyle
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海词词典,十七年品牌