二者择一地，直升飞机可以为近距离空中支援任务携带制导火箭吊舱或机炮吊舱。

Alternatively, the helicopter could carry guided rocket pods or machine gun pods for close air support role.

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而且，在任一物体都能起作用的时候，例如能充当书镇的物体，孩子们会二者择一。

And in the case when any object would do, such as something that could act as a paperweight, the children brought either the fake one or the real one.

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一旦要消费者在消费便利性和个人隐私间二者择一，大多数人似乎还是会每次都选择便利性。

When it comes to trading convenience against privacy, most people seem to back convenience every time.

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