问我的ubuntu电脑上，同时有网线和wifi链接着，我如何才能先走wifi，后走网线？

ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.137.211  netmask 255.255.255.0  broadcast 192.168.137.255
        inet6 fe80::2f2c:7be5:375e:ab75  prefixlen 64  scopeid 0x20<link>
        ether b2:95:bd:af:37:6a  txqueuelen 1000  (Ethernet)
        RX packets 83968  bytes 5112814 (5.1 MB)
        RX errors 0  dropped 1  overruns 0  frame 0
        TX packets 1125  bytes 225821 (225.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 27

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1843  bytes 241855 (241.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1843  bytes 241855 (241.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.9.44  netmask 255.255.252.0  broadcast 192.168.11.255
        inet6 fe80::3613:62da:544:b221  prefixlen 64  scopeid 0x20<link>
        ether 08:fb:ea:e8:89:2a  txqueuelen 1000  (Ethernet)
        RX packets 103982  bytes 19870150 (19.8 MB)
        RX errors 0  dropped 1951  overruns 0  frame 0
        TX packets 2291  bytes 443787 (443.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

sudo ip route
default via 192.168.137.1 dev eth0 proto static metric 100
default via 192.168.8.1 dev wlan0 proto dhcp metric 600
192.168.8.0/22 dev wlan0 proto kernel scope link src 192.168.9.44 metric 600
192.168.137.0/24 dev eth0 proto kernel scope link src 192.168.137.250 metric 100
192.168.137.0/24 dev eth0 proto kernel scope link src 192.168.137.211 metric 100