求Gerund 和 Present Participle的标准定义

gerund
gerunds
Noun
1.a noun formed from a verb (such as the `-ing' form of an English verb when used as a noun)
(hypernym) verbal noun,deverbal noun
present participle
Noun
1.a participle expressing present action; in English is formed by adding -ing
(hypernym) participle,participial