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Roughen

['rʌf(ə)n] or ['rʌfn]

解釋/意思:

(verb.) make rough or rougher; 'roughen the surfaces so they will stick to each other'.

手打:诺娜--From WordNet

解釋/意思:

(v. t.) To make rough.

(v. i.) To grow or become rough.

阿方斯校對

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