她来回走动，挥动着双臂使身体暖和起来。
史密斯博士的设计能补偿线圈角度、位置变化带来的影响，使使用者能够自由的走动。
Dr Smith’s design can compensate for changes in the angle or position of the coils, allowing a user to move around freely.
很幸运，我们几次在低坡上出游都没有遇到任何正在走动的熊，使我们有足够的时间来欣赏冰雪原野的全景。
Luckily for itinerant bears we don’t meet any in a couple of loops around the lower slopes of the mountain, and have time to admire panoramic views of the icy wilderness around us.
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