| 1. | The difficulty lies primarily in the fact that the fiber core is relatively small .
困难主要在于纤维芯比较小。 |
| 2. | The modifications were aimed chiefly at reducing labour costs and increasing yields .
改变的目的主要在于减少劳力成本和增加果实产量。 |
| 3. | Nonspecific cellular defense mechanisms in the lung rest principally on epithelial cell elements and several types of phagocytic cell .
肺中非特异性细胞防御机理主要在于表皮细胞和几种有吞噬作用的细胞。 |
| 4. | The difficulty in distinguishing variable species is largely due to the varieties mocking, as it were, other species of the same genus .
变异的物种所以难于区别，主要在于变种和同属中其他物种相象的缘故。 |
| 5. | My interest in him chiefly centres in his quick mind
我对他的兴趣主要在于他头脑灵敏。 |
| 6. | The trouble turned substantially on the failure to consult them
问题主要在于没有跟他们商量。 |
| 7. | The author will analyze the theory in the fourth part
本文的第四部分主要在于对于理论的评价。 |
| 8. | The difference is primarily the target clientele of each establishment
两者的区别主要在于顾客对象。 |
| 9. | Based on lectures , readings taken from the primary literature , and discussions
课程教学主要在于文献探讨与讨论。 |
