Formerly he often lingered about [around] a park, doing nothing. 从前他时常在公园里逛荡,无所事事。
I don't like to see young people loafing about the town with nothing to do. 我不喜欢看到年轻人游手好闲地在城里逛荡。
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)