empty slot meaning in Chinese

空时隙

If you have someone who doesn t know anything , it d actually hinder the progress of the production . due to the poor market , there are more and more people leaving their jobs in our field , and it is unlikely that they ll come back , that is why it is necessary to fill up the empty slots . so this time i tried to give them an opportunity to learn
若找两个没用的，其实都是阻碍了我们，那可以的话便找一、两个过来，其实都是要教他们，因为他们很多东西都不懂的，以为找多个人来帮手，但可能反而减慢了拍摄进度，但我都想给他们实习一下。
If you have someone who doesn t know anything , it d actually hinder the progress of the production . due to the poor market , there are more and more people leaving their jobs in our field , and it is unlikely that they ll come back , that is why it is necessary to fill up the empty slots . so this time i tried to give them an opportunity to learn
若找两个没用的，其实都是阻碍了我们，那可以的话便找一、两个过来，其实都是要教他们，因为他们很多东西都不懂的，以为找多个人来帮手，但可能反而减慢了拍摄进度，但我都想给他们实习一下。