观察自然界的现象
observe natural phenomena
观察病情
observe the patient's condition
观察局势的进展
observe the progression of the situation
观察周围形势
observe the surrounding situation
观察地形
observe terrain
据初步观察
according to preliminary observations
这是我的初步观察。
This my preliminary observation.
观察一个人不仅要看他的言论，而且要看他的行动。
One must study a person's actions as well as their words.