第四，应在冬季到来之前，用一些措施，以防止冻伤。
Fourth, before the winter comes, using some measures to prevent frostbite.
与在珠峰上要防止冻伤不同，月球上的挑战将是在长达两星期的“月球天”的太阳直射下保持身体的清凉。
Rather than getting frostbite on Everest, the challenge would be staying cool under the glaring sun of the two-week long "day" on the moon.
防止嘴巴冻伤的最好办法，凡士林还可以抹在鼻子和面部。
You can also use the Vaseline on your nose and cheeks (or anywhere else on your face) to prevent windburn and chapping.
防止嘴巴冻伤的最好办法，凡士林还可以抹在鼻子和面部。
You can also use the Vaseline on your nose and cheeks (or anywhere else on your face) to prevent windburn and chapping.
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