英语词汇protoplanet怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	protoplanet
释义	protoplanet['prəutəu,plænit] n.【天文学】原行星
随便看	Helmand helmed Helmert's formula helmet helmeted helmeted guinea fowl helmetlike helmet liner helmet-mounted display helmets helmet shell helmet shrike Helmholtz coil Helmholtz coils Helmholtz energy Helmholtz equation Helmholtz flow Helmholtz free energy Helmholtz function Helmholtz, Hermann Ludwig Ferdinand von Helmholtz instability Helmholtz-Kelvin contraction Helmholtz layer Helmholtz's theorem Helmholtz wave

英汉双解词典包含483723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。