| 1. | Radio waves travel in straight lines .
无线电波是直线传播的。 |
| 2. | The means of dispersal are wind, water and animals .
传播的媒介有风、水和动物。 |
| 3. | Animals may serve as a vehicle for viral transmission .
动物可能成为病毒传播的媒介。 |
| 4. | Early in life we learn that light travels in straight lines .
早先在生活中我们就知道光是直线传播的。 |
| 5. | It teaches ethical codes which are not conducive to human happiness .
它所传播的道德规范有益于人类的幸福。 |
| 6. | The usual vehicles of dispersal are wind, water and animals(zoochory) .
通常传播的媒介物是风、水和动物（动物传播）。 |
| 7. | The usual vehicles of dispersal are wind (anemochory), water (hydrochory) .
通常传播的媒介物是风（风播）、水（水播）。 |
| 8. | The usual vehicles of dispersal are wind (anemochory), water (hydrochory) .
通常传播的媒介物是风（风播），水（水播）。 |
| 9. | In the tranquility she imparted there was an alloy of inexpressible sadness .
在她传播的这种宁静中，掺杂着一种无法表达的忧郁。 |
| 10. | The airborne carcinogens are in the atmosphere as absorbed matter on soot particles .
空气传播的致癌物在大气中是烟炱粒子上吸附的物质。 |
