light travels是什么意思?
light travels是什么意思?
light travels 是什么意思?光年的英语单词是什么?
Light travels at about____.
It ( )that light travels faster than sound
Light travels move quickly than sound?
Light travels faster than sound改为过去式
Light travels much faster than sound.
Light travels 300,000 kilometres a second
Light,light,bright是什么意思
英语同义句转换1、Light travels faster than sound. Sound travels ____
light travels faster than sound的同意句
“light travels faster than sound , ”our teacher told us . 改为