如果飞行汽车想要离开地面，它们似乎会面临很多问题！
It seems that flying cars will face more than a few problems if they are to get off the ground!
“刚回来时，我们面临很多问题，”尤素夫回忆说。
"We faced a lot of problems when we returned," Yousuf recalled.
再向南一点，尼日利亚拥有很多原有，但是也面临很多问题。
And further the south, Nigeria has lots of crude but lots of problems too.
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