体重增加用英语怎么说？

体重增加

例句

• He has put on weight during the last two months. 他上两个月里体重增加了。
• Within two weeks, she gained five pounds in weight. 两周内她的体重增加了5磅。
• The baby doubled its weight in a year. 那婴儿一年中体重增加了一倍。
• Luther's put on three stone. 卢瑟体重增加了3英石。