Metcolizing
铸铁表面(喷)渗铝法
🗣️ 情景例句
Two of a trade seldom agree.
同行是冤家。
Jack grew timid when he saw the size of the shoes on the front step.
杰克看到了放在玄关的鞋子的尺寸时，甚为吃惊。
wind, earth movements or tremors, and the gravitational pull of the moon and the sun.
风、地球的运动或震颤和月亮、太阳的引力。