来自白慧的问题
【workersbegantounloadanumberofwoodenboxeswhichcontainedclothing能不能去掉which直接变成workersbegantounloadanumberofwoodenboxescontainedclothing】
workersbegantounloadanumberofwoodenboxeswhichcontainedclothing能不能去掉which
直接变成workersbegantounloadanumberofwoodenboxescontainedclothing

