Readme key features (#1909)

README.md

@@ -40,29 +40,12 @@ English | [中文版](README_CN.md)
 
 # Key features
 
-- **Transparent Scalability**
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-    An OceanBase cluster can be scaled to 1,500 nodes transparently, handling petabytes of data and a trillion rows of records.
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-- **Ultra-fast Performance**
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-    The only distributed database that has refreshed both the TPC-C record, at 707 million tmpC, and the TPC-H record, at 15.26 million QphH @30000GB.
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-- **Real-time Operational Analytics**
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-    A unified system for both transactional and real-time operational analytics workloads.
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-- **Continuous Availability**
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-    OceanBase Database adopts the Paxos Consensus algorithm to achieve Zero RPO and less than 8 seconds of RTO. Supports intra-city/remote disaster recovery, enabling multi-activity in multiple locations and zero data loss.
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-- **MySQL Compatible**
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-    OceanBase Database is highly compatible with MySQL, which ensures that zero or a few modifications are needed for migration.
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-- **Cost Efficiency**
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-    The cutting-edge compression technology saves 70%–90% of storage costs without compromising performance. The multi-tenancy architecture achieves higher resource utilization.
+- **Transparent Scalability**: 1,500 nodes, PB data and a trillion rows of records in one cluster.
+- **Ultra-fast Performance**: TPC-C 707 million tmpC and TPC-H 15.26 million QphH @30000GB.
+- **Cost Efficiency**: saves 70%–90% of storage costs.
+- **Real-time Analytics**: supports HTAP without additional cost. 
+- **Continuous Availability**: RPO = 0(zero data loss) and RTO < 8s(recovery time)
+- **MySQL Compatible**: easily migrated from MySQL database.
 
 See also [key features](https://en.oceanbase.com/product/opensource) for more details.
 

README_CN.md

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 # 关键特性
 
-- **水平扩展**
+- **水平扩展**：单机群支持超过1500节点、PB级数据量和单表超万亿行数据；
+- **极致性能**：TPC-C 7.07亿tmpC和TPC-H 1526 万 QphH @30000GB；
+- **低成本**：存储成本节省70%-90%；
+- **实时分析**：不需要额外开销，支持HTAP；
+- **高可用**：RPO = 0（0数据丢失），RTO < 8秒（恢复时间）；
+- **MySQL 兼容**：很容易的从MySQL迁移过来。
 
-    实现透明水平扩展，支持业务快速的扩容缩容，同时通过准内存处理架构实现高性能。支持集群节点超过数千个，单集群最大数据量超过 3PB，最大单表行数达万亿级。
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-- **极致性能**
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-    唯一一个刷新了 TPC-C 记录（7.07 亿 tmpC）和 TPC-H 记录（1526 万 QphH @30000GB）的分布式数据库。
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-- **实时分析**
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-    基于“同一份数据，同一个引擎”，同时支持在线实时交易及实时分析两种场景，“一份数据”的多个副本可以存储成多种形态，用于不同工作负载，从根本上保持数据一致性。
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-- **高可用**
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-    独创“三地五中心”容灾架构方案，建立金融行业无损容灾新标准。支持同城/异地容灾，可实现多地多活，满足金融行业 6 级容灾标准（RPO=0，RTO< 8s），数据零丢失。
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-- **MySQL 兼容**
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-    高度兼容 MySQL，覆盖绝大多数常见功能，支持过程语言、触发器等高级特性，提供自动迁移工具，支持迁移评估和反向同步以保障数据迁移安全，可支撑金融、政府、运营商等关键行业核心场景。
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-- **低成本**
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-    基于 LSM-Tree 的高压缩引擎，存储成本降低 70% - 90%；原生支持多租户架构，同集群可为多个独立业务提供服务，租户间数据隔离，降低部署和运维成本。
 
 更多信息请参考 [OceanBase 产品](https://www.oceanbase.com/product/oceanbase)。