Let's say we have team a and team B. They are cross functional feature teams working on a flight booking system.

假设有团队a和团队b。他们都是跨职能团队，并且一起开发一个航班订票系统。

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B: Flight attendants, please cross check.

B：空乘人员，请交叉检查。

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We have also learned that the direction of the cross product is given by taking the direction that's perpendicular to a and b.

我们还学过，外积的方向，与A和B均垂直。

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B is the assumed cross-section of the nucleus.

假定B是核的横截面积。

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You can cross it on foot, bike or by riding across on the B, D, N or Q subway line.

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