"Resistance to the manager's plan built up quickly"
"Pressure is building up at the Indian-Pakistani border"
"we worked up an as of an appetite"
"We worked up courage"
"build up confidence"
"ramp up security in the airports"
"His colleagues worked out his interesting idea"
"We worked up an ad for our client"
《牛津词典》
《牛津词典》
《柯林斯英汉双解大词典》
《柯林斯英汉双解大词典》
《柯林斯英汉双解大词典》
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