四天时间回来 Four days back
四天时间
Four days
以上为机器翻译结果，长、整句建议使用 人工翻译 。
他们的研发团队花了四天时间研究和烹饪辣椒。
Their research and development team spent four days studying and cooking the peppers.
youdao
随后他花了四天时间准备本周的辩论。
He then spent the next four days preparing for this week's debate.
所以他们撤离也用不了三、四天时间。
And it really shouldn't take them three or four days to get out.
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