adj.观察得到的,应遵守的,应庆祝的;
例句:
But this view is widely observable.
但是这项观点已被普遍认同.
Lincoln's birthday is an observable holiday.
林肯的生日是应该庆祝的纪念日.
It was then observable that the substance was greenish.
这时可以看出那种东西是淡绿色的.