• acknowledge ： 确认收到

ics027

• additional middleware versioning：额外的中间件版本控制
• a channel creation handshake ：一个通道创建的握手
• disallow user-initiated channel closing for interchain account channels：不允许用户主动关闭链间账户的通道

Readme.md

• ordering layer：排序层

ics003

• generate a new identifier if the passed identifier was the sentinel empty-string：如果传递的标识符是哨兵空字符串，则生成一个新的标识符。
• throws if there is no intersection：如果没有交集，则抛出错误

ics004

• Calling modules MAY atomically execute appropriate application acknowledgement-handling logic in conjunction with calling {code0}acknowledgePacket{/code0}.：调用模块可以在调用 acknowledgePacket 的同时，原子化地执行适当的应用程序确认处理逻辑。

ics024

• All IBC sub-protocols (such as opening a connection, creating a channel, sending a packet) are defined in terms of sets of datagrams and protocols for handling them through the routing module.：所有的IBC子协议（如打开一个连接，创建一个通道，发送一个数据包）都是以数据报的集合和通过路由模块处理这些数据报的协议来定义的。

translating "transaction" or "tx" to 交易 or 事务？