| 1. | The quarrel originated in a misunderstanding .
这场争吵起源于误解。 |
| 2. | Fine bubbles originate in the lower respiratory tract .
小汽泡则来自下呼吸道。 |
| 3. | Knowledge originates in practice .
认识来源于实践。 |
| 4. | All genuine knowledge originates in direct experience .
一切真知都是从直接经验发源的。 |
| 5. | Ground waters originating in different beds commingle .
来源于不同层位的地下水相互混合。 |
| 6. | There are two general ways in which fires can originate in a nuclear explosion .
在核爆炸中，可通过两种途径引起火灾。 |
| 7. | The parasympathetic innervation of the heart originates in the medulla oblongata .
支配心脏的副交感神经发源于延髓的迷走神经核。 |
| 8. | They think that the oil under the surface of the earth originated in the distant past .
他们认为地下的石油在远古时期就开始形成。 |
| 9. | When the bubbles are coarse it signifies that the secretion originates in the pharynx or nasal cavities .
气泡大时表示分泌物来自咽腔或鼻腔。 |
