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Needless to say, all this is one tough marketing problem.
不用说，所有这一切都是个棘手的营销问题。
youdao
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It's going to take a long time to solve this marketing problem.
要解决这个行销问题，得花上好一段时间才行。
youdao
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It's going to take a long time to solve this marketing problem.
要解决这个行销问题，得花上好一段时间才行。
youdao