docs: improve descriptions

Co-authored-by: Zaiming (Stone) Shi <zmstone@gmail.com>

lib-ee/emqx_ee_bridge/i18n/emqx_ee_bridge_kafka.conf

@@ -481,13 +481,13 @@ emqx_ee_bridge_kafka {
         }
         label {
             en: "Kafka Consumer"
-            zh: "Kafka Consumer"
+            zh: "Kafka 消费者"
         }
     }
     consumer_opts {
         desc {
-            en: "Local MQTT data sink and Kafka bridge configs."
-            zh: "本地MQTT数据汇和Kafka桥配置。"
+            en: "Local MQTT publish and Kafka consumer configs."
+            zh: "本地 MQTT 转发 和 Kafka 消费者配置。"
         }
         label {
             en: "MQTT to Kafka"
@@ -501,23 +501,23 @@ emqx_ee_bridge_kafka {
         }
         label {
             en: "Kafka Consumer"
-            zh: "卡夫卡消费者"
+            zh: "Kafka 消费者"
         }
     }
     consumer_mqtt_opts {
         desc {
-            en: "MQTT data sink."
-            zh: "MQTT数据汇。"
+            en: "Local MQTT message publish."
+            zh: "本地 MQTT 消息转发。"
         }
         label {
-            en: "MQTT data sink."
-            zh: "MQTT数据汇。"
+            en: "MQTT publish"
+            zh: "MQTT 转发"
         }
     }
     consumer_mqtt_topic {
         desc {
             en: "Local topic to which consumed Kafka messages should be published to."
-            zh: "消耗的Kafka消息应该被发布到的本地主题。"
+            zh: "设置 Kafka 消息向哪个本地 MQTT 主题转发消息。"
         }
         label {
             en: "MQTT Topic"
@@ -527,48 +527,44 @@ emqx_ee_bridge_kafka {
     consumer_mqtt_qos {
         desc {
             en: "MQTT QoS used to publish messages consumed from Kafka."
-            zh: "MQTT QoS用于发布从Kafka消耗的消息。"
+            zh: "转发 MQTT 消息时使用的 QoS。"
         }
         label {
-            en: "MQTT Topic QoS"
-            zh: "MQTT 主题服务质量"
+            en: "QoS"
+            zh: "QoS"
         }
     }
     consumer_mqtt_payload {
         desc {
             en: "The payload of the MQTT message to be published.\n"
-                "<code>full_message</code> will encode all data available as a JSON object,"
+                "<code>full_message</code> will encode available Kafka message attributes as a JSON object, including Key, Value, Timestamp and Headers"
                 "<code>message_value</code> will directly use the Kafka message value as the "
                 "MQTT message payload."
             zh: "要发布的MQTT消息的有效载荷。"
-                "<code>full_message</code>将把所有可用数据编码为JSON对象，"
-                "<code>message_value</code>将直接使用Kafka消息值作为MQTT消息的有效载荷。"
+                "<code>full_message</code>将把所有可用数据编码为JSON对象，包括 Key，Value，Timestamp 和 Headers。"
+                "<code>message_value</code>将直接使用 Kafka 消息值作为MQTT消息的 Payload。"
         }
         label {
             en: "MQTT Payload"
-            zh: "MQTT有效载荷"
+            zh: "MQTT Payload"
         }
     }
     consumer_kafka_topic {
         desc {
             en: "Kafka topic to consume from."
-            zh: "从Kafka主题消费。"
+            zh: "指定从哪个 Kafka 主题消费消息。"
         }
         label {
             en: "Kafka topic"
-            zh: "卡夫卡主题 "
+            zh: "Kafka 主题 "
         }
     }
     consumer_max_batch_bytes {
         desc {
             en: "Maximum bytes to fetch in a batch of messages."
-                "NOTE: this value might be expanded to retry when "
-                "it is not enough to fetch even a single message, "
-                "then slowly shrink back to the given value."
+                "Please note that if the configured value is smaller than the message size in Kafka, it may negatively impact the fetch performance."
             zh: "在一批消息中要取的最大字节数。"
-                "注意：这个值可能会被扩大，"
-                "当它甚至不足以取到一条消息时，就会重试，"
-                "然后慢慢缩回到给定的值。"
+                "如果该配置小于 Kafka 中消息到大小，则可能会影响消费性能。"
         }
         label {
             en: "Max Bytes"
@@ -594,13 +590,13 @@ emqx_ee_bridge_kafka {
         }
         label {
             en: "Offset Reset Policy"
-            zh: "偏移重置政策"
+            zh: "偏移重置策略"
         }
     }
     consumer_offset_commit_interval_seconds {
         desc {
-            en: "Defines the time interval between two <code>OffsetCommitRequest</code> messages."
-            zh: "定义了两个<code>OffsetCommitRequest</code>消息之间的时间间隔。"
+            en: "Defines the time interval between two offset commit requests sent for each consumer group."
+            zh: "指定 Kafka 消费组偏移量提交的时间间隔。"
         }
         label {
             en: "Offset Commit Interval"