破50概率的改进公式简介：Although it is just noon now, the days are short in winter, and all personnel and materials must be transported ashore before dark. Otherwise, when the temperature drops after dark, the warship may be frozen in the port.
Although it is just noon now, the days are short in winter, and all personnel and materials must be transported ashore before dark. Otherwise, when the temperature drops after dark, the warship may be frozen in the port.
