once while traveling
一次旅行
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Those close to him say he once stopped off here while traveling in Asia and liked it.
WSJ: The Other Facebook Founder
When Sullivan started getting messages from his colleagues in the recruiting industry while they were traveling on Google's behalf in Europe, he knew the once-insular company was beginning a global push.
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