This is the 7528th most frequent Chinese word.
警方於
"警方於" means "the police at" or "the police on" depending on the context.
In this sentence, '警方於' introduces the police as the subject conducting actions within a specific timeframe (last night).
警方於昨晚成功逮捕一名闖入者。
The police successfully apprehended an intruder last night.
Here, '警方於' highlights the role of the police in the investigation, emphasizing their active involvement.
警方於此案的調查中發現了新的線索。
The police discovered new clues during the investigation of this case.
In this usage, '警方於' specifies the urgency and context in which the police operated, stressing the situational promptness of their response.