执行“sudo apt-get update”时，我不断收到警告消息。我试图在 kubernetes 集群中进行更新。我该如何解决？

Question

root@gpus:/home/gpus# apt-get update

Hit:2 https://repo.download.nvidia.com/baseos/ubuntu/focal/x86_64 focal InRelease                                                                
Get:1 https://packages.cloud.google.com/apt kubernetes-xenial InRelease [9,383 B]                                                                
Hit:4 https://baltocdn.com/helm/stable/debian all InRelease                                                                 
Ign:5 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64  InRelease
Hit:6 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64  Release
Get:8 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Hit:9 http://us.archive.ubuntu.com/ubuntu focal InRelease
Get:10 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Fetched 237 kB in 3s (87.3 kB/s)                                    
Reading package lists... Done
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Translations (main/i18n/Translation-en_IN) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Translations (main/i18n/Translation-en_IN) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list.d/kubernetes.list:1

我附上了命令的屏幕截图：cat /etc/apt/sources.list