当一台服务器上发生故障时，该备用适配器就从另一服务器上接管所有连接。

When a failure happens on one server, then this standby adapter takes over all connections from the other server.

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另一个服务器是备用成员，因为它的唯一负载是集群复制。

The other server is a standby member because its only load is cluster replication.

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右边的服务器(备用服务器)称为“备用”集群成员，因为它的唯一负载就是集群复制。

The one on the right (standby server) is called a "standby" member because the only load on it is cluster replication.

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