Hundreds of plastic bags were collected___ two hours.这里填in,还是after?为什么呢?

Hundreds of plastic bags were collected___ two hours.这里填in,还是after?为什么呢? hundreds of thousands of hundreds of thousands of it takes hundreds of years for plastic bags to be absorbed by soil ,which will block the drainagesystem and cause water pollution .中的which带的什么? hundred ,hundreds,hundred of,hundreds of... hundred ,hundreds,hundred of,hundreds of... hundreds of time / hundreds of times 英语翻译hundred b.hundreds,hundreds of c.hundred,hundreds of d.hundreds,hundreds hundreds of和 hundreds的用法00 英语翻译 hundreds of Hundreds of thousands hundreds of的用法 for hundreds of years 怎样用hundreds of造句 hundreds of thousands hundreds of years= hundreds of a second several hundreds of