“proper triphthong”概念、定义、翻译-科学时代

单词	proper triphthong
释义	语言学词汇手册 proper triphthong 真三元音
随便看	booster lead booster light booster light booster-missile combination booster pump booster pump booster pump booster pump booster pump station booster rocket booster rocket booster rod booster seven pipe connector working ladder booster stage booster station booster trailer booster transformer booster turbopump booster turning sling boosting boost price boost sales boost turbopump boost up boot

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

proper triphthong