Meanwhile, the outdoor sports in particular, to prevent chilling by cold air cold, attention to the sun, apply sunscreen before exercise is best.

同时，户外运动尤其要防止冷空气感冒，注意防晒寒心，运动前涂上防晒霜是最好的。

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Monday's opposition rally in Moscow drew many of the young middle-class Muscovites who have turned out by the tens of thousands for four previous demonstrations in this winter's bone-chilling cold.

WSJ: Russia Detains Hundreds of Protesters