| 51. | a biological experiment , reaction |
| 生物学实验[反应]
|
| 52. | a chemistry [chemical] experiment |
| 化学实验
|
| 53. | a control experiment |
| 对照实验
|
| 54. | a controlled experiment |
| 受制的实验
|
| 55. | a fruitful [fruitless] experiment |
| 有成效（无成效）的试验
|
| 56. | a laboratory experiment |
| 实验室里做的实验
|
| 57. | an entirely original and unprecedented experiment |
| 一项完全独创的、前所未有的试验
|
| 58. | a physics experiment |
| 物理实验
|
| 59. | a rash experiment |
| 草率的试验
|
| 60. | try the two-meals-a-day experiment |
| 进行每日两餐的试验
|