a strong cold air current的用法和样例：
- Many students have class at that time gave birth to frostbite, and we could not sleep at night, wind whistling, and had never encountered such a strong cold air, almost so that our struggle will die.
- It is estimated that tomorrow, the north will have strong cold air to affect Jiangsu.
- While the southerly air current was detained by the easterly cold air ,which resulted in the ascending motion and influenced on the shear intensity and its resultant precipitation.
- The boat heeled over in a strong wind.