1·I am so cheerful and yet so sad that my tears reflect at once both heaven and earth.
我是如此兴高采烈，而又如此悲伤，以至于我的眼泪立刻映出了天地。
2·Once both of us entered for an English contest.
一旦我们都进入了一个英语比赛。
3·Once both engines are in full AB, I look to the right.
一旦发动机进入到完全加力状态，我就要向右看。
4·Once both actions complete, the join control node [5] is invoked [6].
这两个动作完成之后，就会触发join控制节点[6]。
5·That makes rulings binding once both parties have given authority to the arbitrator.
这样，一旦双方当事人已将权力授予仲裁人，判决结果即是被遵守的。
6·Once both switch jobs are done, return to the unloading area where you started from and you are done.
一旦这两个开关的工作要做，回到卸货的地方开始你和你的工作要做。
7·Once both ends of the conversation are on the Net, connection fees will become relics of the early modern age.
一旦通话的两端都在互联网上，连接费就会成为现代时期的早期遗迹。
8·Once both parties have asserted the same relationship, the UDDI registry will create the business relationship.
一旦双方都声明了相同的关系，UDDI注册中心将创建它们的企业关系。
9·Regardless, once both the hostname and port number are specified to the BIO, it will attempt to open the connection.
不管怎样，一旦BIO的主机名和端口号都已指定，该指针会尝试打开连接。
10·Did employee use the guest's name at least once both when the wake up call was placed and when it was delivered?
在叫醒服务时员工至少一次使用客人的名字了吗？