| 41. | observe [keep] the day |
| 过节，庆祝节日
|
| 42. | faithfully observe the directions |
| 忠实执行命令
|
| 43. | fail to observe a signal |
| 没有看到信号
|
| 44. | observe a two minutes' silence in memory of revolutionary martyrs |
| 为纪念革命先烈静默两分钟
|
| 45. | observe [review] the situation |
| 观察形势
|
| 46. | observe the symptoms of arteriosclerosis |
| 观察动脉硬化的症状。
|
| 47. | observe time |
| 按时，准时
|
| 48. | observe the trend o public opinion |
| 观察舆论倾向
|
| 49. | observe [ratify] a treaty |
| 遵守[批准]条约
|
| 50. | observe attentively |
| 注意观察
|