He wanted to go to Shanghai on urgent business.
参考译文:他想去北京办理紧急业务。
on (英文解释(引出所进行的活动,特别是旅行)处于…情况中,在从事…中 You use on to introduce an activity that someone is doing, particularly travelling.)
I've always wanted to go on a cruise.我一直想坐游轮旅游。
Tom is on business/holiday/vacation汤姆在北京出差。
Jack is on holiday/vacation in Shanghai 杰克在上海 度假。
They look happy and relaxed as they stroll in the sunshine on a shopping trip.
他们漫步于阳光下购物,看上去悠然惬意。
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