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1.bitter wind 刺骨的寒风
The bitter wind cut through his jacket.
刺骨的冷风吹透了他的夹克衫。
2.cool off 冷却下来
On clear winter nights, the ground and overlying air cool off rapidly, especially at high elevations.
在冬季晴朗的夜晚，地面和上方的空气迅速冷却，在高海拔地区更加明显。
adj. 复杂的，难懂的
动词complica
