what is the sound和what is sound分别是什么意思,有什么区别 what is the nam

what is sound engineering. what is orange and sound like parrot what the matter is 和 what the problem is 有什么区别? what the task is 和 what is the task 区别 what is wrong和what is the matter有什么区别 What is known to us that the light travels faster than sound what is the meaning和what is meaning的区别 what is it?和what it is?有什么区别 what it is?和 what is it?有什么区别? what the hell..和 what is the hell...的区别 英语 What the date tady?和what day is it today?有什么区别? what is the color是什么意思