1. Document exchange could be set in terms of half day once, daily once, weekly once, monthly once, etc. 可固定每半天、每天、每星期或每月交换文件多次。
2. Once I produce, once I write, it is the Text itself which (fortunately) dispossesses me of my narrative continuity. 每当我在创作，在写作时，正是文本本身剥夺了我的叙述连贯性。
3. X-ray actinogram was gained once every 16 day, and X-ray actinogram was taken once every 2 month after 3 times to survey limb lengthening problem and complication. Time of therapy was 8-15 months. 每隔15天拍X射线片1次，3次以后，每隔1个月拍片1次，观察延长情况及并发症的严重程度等指标，治疗时间8～15个月。
4. You can only live once, therefore, do spare no effort to contribute kinds and benefactions to the world at once, no sluggish , no neglect. 人的生命只有一次，所以，任何能贡献出来的好与善，我们都应现在就去做。不要迟缓，不要怠慢，因为妳就活这么一次。
5. But once again science gives at least partial credence to something that was once considered only a myth. 但是科学至少再一次给了那些曾经被认为只是神话的东西一部分的信任。
网络释义
aforetime beforetime formerly long since once once upon a time whilom 从前;
It groaned once and once 它呻吟了;
aforetime beforetime formerly long since once once upon a time whilom 从前;
aforetime beforetime formerly long since once once upon a time whilom 从前;
