delinquencyn.(少年)犯罪;失职
delimitvt.定界限;划界
delineate one's plans色泽灰暗的面包心
delineated by marker buoys.比赛场地由浮标分开。
"The tree was clearly defined by the light"
"The camera could define the smallest object"
"draw a line"
"trace the outline of a figure in the sand"