此次 + Action/Event
此次 (cǐcì) means "this time" or "on this occasion." It is a formal expression commonly used in news reports, official statements, and written Chinese. In everyday speech, the more casual equivalent would be 这次 (zhècì).
此次会议将讨论气候变化问题。
cǐ cì huìyì jiāng tǎolùn qìhòu biànhuà wèntí.
This conference will discuss the issue of climate change.
此次事故造成三人受伤。
cǐ cì shìgù zàochéng sān rén shòushāng.
This accident caused three people to be injured.
此次合作对双方都意义重大。
cǐ cì hézuò duì shuāngfāng dōu yìyì zhòngdà.
This cooperation is of great significance to both sides.