I have made some clear observations . 我已经进行了一些仔细的观察。
The careful observation and inference was his daily work . 他的日常工作便是仔细的观察和诊断。
Few wives in their forties can weather such a scrutiny . 很少年过四十的妻子经得起这么仔细的观察。
The most careful observation of one developing caterpillar will not help us to predict its transformation into a butterfly . 对一个正在成长的毛虫进行最仔细的观察也不能使我们预见它变成蝴蝶。
Careful observation convinced them that is was so 仔细的观察使他们相信情况是这样的。