英语语法问题some scientists believe that the species known as Whit
英语语法问题 some scientists believe that the species known as White's tree frog is able to control the amount of water that is evaporate through its skin,enabling them to control their body temperature.这句话中enabling对应的逻辑主语是?一般像这种句子怎么判断动名词的逻辑主语呢?