傻兮兮的呆呆
这里应该选Aeffective 的意思是有效的,有影响的而整一句话的意思是:表现出幽默风趣的一面可以成为处理紧张/压抑情况的一条很有效的途径。efficient的意思是效率高的,有能力的下面再举几个例子吧:effective1.Their efforts to improve the production have been very effective. 他们提高生产力的措施卓有成效。 2.Commercial television is an effective medium for advertising. 商业电视是有效的广告宣传工具. efficient1.The heating system has recently been modified to make it more efficient. 最近供暖设备已稍加改动以提高效率. 2.This is a highly efficient new heating system. 这是个高效的新取暖系统。P.S.这两个词都是形容词
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