英语词汇happy as a sandboy的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	happy as a sandboy
释义	happy as a sandboy 例句释义: 全部
随便看	positive definite Hermitian inner product positive definite Hermitian matrix positive definite Hermitian operator positive definite Hermitian transformation positive definite inner product positive definite integral form positive definite kernel positive definite matrices positive definite matrix positive definiteness positive definiteness covariance positive definite operator positive definite quadratic form positive definite second variation positive definite sequence positive definite symmetric kernel positive definite symmetric matrices positive definite symmetric matrix positive definite transformation positive definitness positive degree positive delivery positive delivery lay positive delivery of oil positive density

英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。