词汇	earth spreader
释义	earth spreader 泥土导散板
随便看	second land second land survey second lane second language second-language secondlanguage acquisition Second LanguageAcquisition second language acquisition second-language acquisition second language acquisition motivation second language acquisition theories second language acquisition theory Second Language Acquisltion second language acquistion second language and foreign language Second Language Aquisition second language attrition second language classroom second language culture second language ego second language instruction second language learner second language learners second language learning second-language learning