因素: factor; element 短语和例子决定因素 decisive factor; 积极因素 positive factor; 关键因素 the key facter; 致病的因素 factor in the causation of disease; 社会因素 social factor; 主导因素 leading factor; 基本因素 essential elem
折: 折动词[口语]1.(翻转) roll over; turn over 短语和例子折跟头 turn somersault; 折过儿 turn over; 折来折去 roll about2.(倒过来倒过去) pour back and forth between two containers 短语和例子开水太烫, 拿两个杯子折一折就凉了。 the water's boiling
