What happens when multiple servers are written into Trojan configuration?

[FlyGinger]

  "outbounds": [
    {
      "tag": "proxy",
      "protocol": "trojan",
      // ...
      "settings": {
        "servers": [
          {
            "password": "hidden",
            "port": 666,
            "email": "",
            "level": 0,
            "address": "hidden"
          }
        ]
      }
    },
    // ...
  ],

settings.servers is an list, so we can write multiple servers into it. What happens when do so? Will V2Ray alway use the first server? Or strike a balance between them?

[AkinoKaede]

V2Ray will use the servers in turn.