单词	toughen
释义	toughentough‧en /ˈtʌfən/ (also toughen up) verb [intransitive, transitive] Verb Table VERB TABLE toughen Simple Form Present I, you, we, they toughen he, she, it toughens Past I, you, he, she, it, we, they toughened Present perfect I, you, we, they have toughened he, she, it has toughened Past perfect I, you, he, she, it, we, they had toughened Future I, you, he, she, it, we, they will toughen Future perfect I, you, he, she, it, we, they will have toughened Continuous Form Present I am toughening he, she, it is toughening you, we, they are toughening Past I, he, she, it was toughening you, we, they were toughening Present perfect I, you, we, they have been toughening he, she, it has been toughening Past perfect I, you, he, she, it, we, they had been toughening Future I, you, he, she, it, we, they will be toughening Future perfect I, you, he, she, it, we, they will have been toughening Examples EXAMPLES FROM OTHER DICTIONARIES The state is toughening its anti-smoking laws. EXAMPLES FROM THE CORPUS Both conservatives and Communists have simply toughened their attitude to the government. Even better would be cake flour, which contains even less of those toughening proteins, she said. Governor Bush has made his mark building prisons, toughening laws on juvenile crime and calling for lower property taxes. Just the opposite is true with cake, muffin or quick-bread recipes where too much gluten will toughen the finished product. The schools claimed to toughen boys, and they did. Thus, cotton consists of cellulose; and so does wood, though wood is toughened with lignin. Collocations COLLOCATIONS FROM THE CORPUSADVERB► up · A year-and-half later, though, with Eithne replacing Elizabeth as second vocalist, the sound has toughened up substantially.· He was told to toughen up!· However, the Dulwich experience taught him to toughen up. Word family WORD FAMILYadverbtoughlytoughtoughlynountoughnessadjectivetoughverbtoughen to become tougher, or to make someone or something tougher:  toughened glass Three years in the army toughened him up.
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