put on a lot of weight中的“put on”怎么翻译

put on a lot of weight中的“put on”怎么翻译 put on a lot of weight put on weight 中的 on 是什么词性 put weight on put on weight put my weight on put on a pad怎么翻译? put on a drip中的put why do people put on weight? he has put on weight during th 翻译：put on,put up,put away,put down put weight on与put on weight意思一样吗 为什么