Now she must talk her sister through the process a step at a time.

现在她必须向她姐姐详细解释这个过程，一次只说一个步骤。

《柯林斯英汉双解大词典》

They are always ready for a mysterious adventure every time they step out their door.

每次他们出门的时候，总是准备好了迎接一场神秘的冒险。

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Once the call returns for the current time step, you clear the forces applied to the objects from the last step, and then get the current position and Angle of your dynamic body.

一旦此调用针对当前时间步长返回，就可以清空上一步长施加到这些物体上的力，然后获得动态物体的当前方位和角度。

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The first time you fire up the Replicator, the display will take you through the FRE -- that's First Run Experience -- a series of step-by-step instructions it imparts one screen at a time (you can also access this later in the utilities menu).

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Baseball's all-time saves leader will step aside with his skills intact but his desire waning.

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CNN: How Obama's legacy got a big boost