v be a signal for or a symptom of
v indicate a place, direction, person, or thing; either spatially or figuratively
v to state or express briefly
v give evidence of
v suggest the necessity of an intervention; in medicine
a. 表明的; 指示的
v. 标示( indicate的过去式和过去分词 ); 指示; 象征; 表明或暗示…的可能性