kwgt weight和pro的区别？

loseweight什么意思及同义词？ cartonweight指的是什么重量啊？ put on weight的同义词？ His weight is three times of mine.这句话对不对呢？ gross weight是什么意思？ lose weight 还是lose weights？ 155斤属于拳击什么量级？ cad中lineweight命令是什么？ 净收益和无净损失的区别？ 为什么要设置getWeight和setWeight？