文件被卡住可能是文件没有放对或文件太长打开盖取出文件盖好盖重新放入文件并调整位置重新发
If a file gets stuck, it might be due to incorrect placement or being too long. Open the lid, take out the file, close the lid, put the file back in, adjust its position, and then send it again
以上为机器翻译结果，长、整句建议使用 人工翻译 。