F16. feature-F17. fluctuate

feature

构词：feat（做）＋ure（功用或结果n.）

“做成/成就...功能 n. 特色；特性；容貌；专题。         

 v. 以…为特色；由…主演；起...（重要）作用”

相关：feat—defeat，feature—featureless

搭配：special / geographic / water / someone's feature；

            feature phone；feature presentation

            someone features in a film；a film/book features someone

同义：aspect，factor，quality，character，attribute，trait

考点：同义替换“特征”

fluctuate

构词：fluct（flu 流 + act 动 ）＋ u ＋ate（v.）

“水流波动 v. （使）波动；（使）动荡”

相关：flow，flu，fluent，influence

搭配：prices / temperature / mood / weight fluctuate

同义：swing，change，vary，alter，alternate，shift，transform

考点：变与不变；写作图表数据分析