1.
For once and for all, I'll not go swimming swimming with you.
只此一次，我再不和你一起去游泳了。
2.
Well , we accept d/p term but only once .
好吧，我们接受付款交单，但只此一次。
3.
This was our only exposure to the complexities of the Middle East.
我们面临中东的复杂局面，决不仅仅是只此一次。
4.
Opportunities tend to be one-time shots; if you don't take them that instant, you lose them forever.
机会只此一次，若你毫无准备与预见，它将永远与你擦肩而过。
5.
As an exception, we may consider accepting payment by d/p, but only for this order .
作为例外，我们可以考虑接受付款交单，但只此一次。
6.
This operation is only allowed once per object.
对每个对象只能执行一次此操作。
7.
people who meet each other briefly and usu only once
短暂相遇的人（通常指只遇此一次）.
8.
Be pleasant to each other just this once.
彼此要和睦些--就只为这一次吧.
9.
They were deeply in love but could only meet each other across the Milky Way once a year.
他们深爱彼此，但每年只能透过鹊桥见面一次。
10.
The hen broods 10 eggs this time.
此次,这只母鸡孵10个蛋。
11.
I will stay with you for one more night and be your messenger, but that is it. One night only!@ the swallow replied.
“我再跟您待上一晚替您传信好了，不过就此一次?。只有一晚而已
12.
There is only one idea at the moment.
此时此刻只有一个念头。
13.
Manual password entry. The password will be displayed one time. I will write it down and type it in each time the service is started. This is the more secure option.
手动输入密码。密码只显示一次。记下此密码，然后在每次启动服务时将其输入。此选项比较安全。
14.
I have seen her but once. And I shall not forget that face.
我们只有过一面之缘。但仅此一次，就让我永世难忘。
15.
First time he kissed me, he but only kissed /The fingers of this hand wherewith I write;
第一次他亲我，他只是亲了一下／在写这诗篇的手，从此我的手就越来
16.
The mouse is certainly a good idiom in that regard.
好的习惯用法只学习一次，就此而言，鼠标当然是一个好的习惯用法。
17.
At this altitude the atmospheric pressure is half that at sea level, and thus delivers half the amount of oxygen per lungful.
在这一海拔大气压力只有海平面的一半，因此每呼吸一次身体只能得到一半的氧气供给。
18.
Look at the tables the wizard is proposing, and make sure that each table would store pieces of information once.
考虑此向导建议的表，确认每张表将只存储每条信息一次。