| 1. | Earthworms may produce antibiotic substances .
蚯蚓可以产生抗菌物质。 |
| 2. | Running water produces power to run mills
流水可以产生动力来推磨。 |
| 3. | This kind of letter creates a deep reservoir of good feelings .
这种信可以产生良好的情意。 |
| 4. | Sleep produces a loss of consciousness but not a loss of pain .
睡眠可以产生意识丧失，但不丧失痛觉。 |
| 5. | Photons can be created freely as long as energy is available .
只有要足够的能量，光子随时随地都可以产生。 |
| 6. | A more elaborate painting may yield more conclusive information .
一个更精致的绘画可以产生更多的结论性信息。 |
| 7. | As with the photon, material particles can be created and destroyed .
象光子一样，实物粒子也可以产生和毁灭。 |
| 8. | People chronically exposed to chlorine develop some degree of tolerance .
人长期接触氯气可以产生某种程度的耐受性。 |
| 9. | It is built into the counter, and can be exposed by movement of a shutter .
它装在计数器中，移去挡片，就可以产生照射。 |
