请帮我翻译这两个英语单词~~~

这两个不是单词，显然是编程过程中用的符号。

可能是变量名，可能是过程名

可能是类名……

last_ack:要拆成last 和ack
syn_sent:要拆成syn 和sent

ack syn建议你去编程或开发的版快问一下，是很标准的简写，可是这样笼统的问我也无法确认只指什么变量。

YN_SENT

System that initiates a TCP connection has sent SYN packet but has not received an acknowledgment. If a connection persists in this state, it means that either the remote host is down or that a packet filter is blocking the path to the remote end.

SYN_RECV

System has received a SYN packet for TCP setup and has sent an acknowledgment, but has not received a confirmation from the initiating system. If a connection persists in this state, it means that the remote system initiating the connection has gone down, or a packet filter is blocking return packets.

ESTABLISHED

TCP connection has been established. A packet filter is not blocking this connection.

FIN_WAIT1

Socket is closed, and connection is shutting dow