| 31. | trace the relationship between |
| 追溯…之间的关系
|
| 32. | draw [ trace ] a map |
| 绘地图
|
| 33. | trace the motives of |
| 探究…的动机
|
| 34. | trace back one's family line |
| 追溯自己的家世
|
| 35. | trace one's life from boyhood upwards |
| 追溯自幼年起的生活
|
| 36. | trace back the pedigree of the family |
| 追溯这个家族的家谱
|
| 37. | trace a clue |
| 查找线索
|
| 38. | trace ( out ) the course of a river |
| 绘出河流走向
|
| 39. | trace some characters upon the sand |
| 在沙地上写几个字
|
| 40. | trace the sense development of a word |
| 探索一个词的词义演变
|