| 1. | Was this designed, or did it just happen ?
这是预先计划的呢，还是偶然发生的？ |
| 2. | Some liabilities are contingent .
有些债务是偶然发生。 |
| 3. | Only occasionally a hubbub of altercation rises to the skies .
只是偶然发生口角，大声地吵闹。 |
| 4. | Except for one minor incident, he seemed to be in excellent health .
他除了偶然发生过一次小病外，似乎非常健康。 |
| 5. | The theory is an effort to generalize about relationships that occur regularly, not about coincidental happenings .
该理论致力于概括某些规律性地发生的关系，而不是论述那些偶然发生的关系。 |
| 6. | There must be some efficient cause for each slight individual difference, as well as for more strongly marked variations which occasionally arise .
每一微小的个体差异，以及偶然发生的较显著的变异，都有其充分原因。 |
| 7. | What doesn ' t seem incidental is the fact that
而不象是偶然发生的事实是 |
| 8. | Good feedback doesn t happen by accident
好的反馈不是偶然发生的。 |
| 9. | What happens unexpectedly often affects one s life
偶然偶然偶然发生的事，往往影响人的一生。 |
| 10. | Everything came to pass by chance
一切都是偶然发生的。 |
