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顶呱呱 first rate; tip top; excellent 顶尖 peak; number one; apex; finest (competitors); world best; top (figures in a certain field) 顶夸克 top quark (physics) ..
Pensioner Ida Keeling, from New York, has set a new worldbest for her age group with a time of 29.86 seconds on the track, the Daily Mail of London reported.