調查

調查

Investigation or survey.

In this sentence, 調查 (investigate or investigate into) is used as a verb indicating the formal procedural action of conducting an investigation.

警方正在調查這起案件。

The police are investigating this case.

Here, 調查 (survey or inquiry) serves as a noun, representing a systematic collection of data or assessments.

根據調查，市場需求逐漸增加。

According to the survey, market demand is gradually increasing.

In this example, 調查 is again used as a noun, describing the act of investigating or gathering information in detail.

記者對此事件進行了深入調查。

The journalist conducted an in-depth investigation into this event.