| 1. | Floods and droughts occur also much more often
水涝干旱时常发生。 |
| 2. | Earthquakes occur frequently in japan
日本时常发生地震。 |
| 3. | It was frequent in the winter
这在冬天是时常发生的。 |
| 4. | And within a dukedom , the struggle for power frequently occurred
而且，在一个公国内部，权力之争也时常发生。 |
| 5. | This is particularly common if you use a modem to connect with ppp
在ppp协议下用调制解调器连接网络时常发生这种情况。 |
| 6. | Confusion and disputes must often have followed later , when these survey points disappeared
后来因为这些测量点消失了，混乱和争执时常发生。 |
| 7. | These may include frequent respiratory disease , such as pneumonia or excessively runny nose
这些包括时常发生的呼吸道疾病，如肺炎，过多流涕。 |
| 8. | She swaiiowed her aitoid . that can happen . a sudden hair fiick , very dangerous
噢她吞了她的薄荷糖.这种事时常发生.特别是甩头发的时候,很危险的 |
| 9. | She swaiiowed her aitoid . that can happen . a sudden hair fiick , very dangerous
噢，她吞了她的薄荷糖，这种事时常发生。特别是甩头发的时候，很危险的。 |
| 10. | Another frequent need is sorting by the values in the dictionary , for which you should see recipe 17 . 7
当它能够排序一个字典的时候，它与时常发生的实际需要相对应。 |
