Thousands of____come to visit Beijing every year.(tour)

Thousands of____come to visit Beijing every year.(tour) Thousands of____come to visit Beijing every year.(tour) thousands thousands and thousands thousands of thousands是什么意思 thousands of thousands of thousands是什么意思? four thousands thousands of. thousand 、thousands、thousands of区别 thousands and thousands of 和thousands of的区别 thousands and thousands of与thousands of的区别? thousands of tens of thousands of tens and thousands of thousands of people Hundreds of thousands tens of thousands tens