1.flow across 流经

例句:Secure communication is related to guaranteeing the integrity and confidentiality of messages as they flow across the network.
安全通信是指在通过网络传送消息时确保消息的完整性和机密性。

2.end up 结束

例句:Every time they went dancing they ended up in a bad mood.
每次他们去跳舞，都会不欢而散。

3.vice versa 反之亦然

例句:We gossip about them and vice versa.
我们议论他们，他们也议论我们。

4.In total 总计

例句:I was with my husband for eight years in total.
我和丈夫在一起的时间总共有8年。