这个我正好知道,今天上课自然课正好学了:the continuous process by which water moves from Earth's surface to the atmosphere and back.水在地球表面与大气中不断的循环.
有3步:evaporation(蒸发),condensation(凝聚),precipitation(降下)
这个我正好知道,今天上课自然课正好学了:the continuous process by which water moves from Earth's surface to the atmosphere and back.水在地球表面与大气中不断的循环.
有3步:evaporation(蒸发),condensation(凝聚),precipitation(降下)