n.仲冬；冬至期；冬至
It is well on in May,yet,it is almost as cold as midwinter. 现在进入5月分已经好长时间了，然而天气还象仲冬一样冷。
The weather is really cold from the beginning of midwinter. 从冬至开始，天气才是真正地冷了下来。
