This is the 885th most frequent Chinese word.
呼籲
To appeal or call for.
This sentence uses '呼籲' (hū yù) as a verb meaning 'to call on' or 'to appeal,' expressing a plea to a group of people to take an action or pay attention to a certain matter.
我們應該呼籲人們關心環保議題。
We should call on people to care about environmental protection issues.
In this context, '呼籲' signifies a formal urging or advocacy for collective action on a global scale, emphasizing diplomatic and cooperative efforts.
這次會議的目的是呼籲國際間共同努力解決氣候問題。
The purpose of this meeting is to urge international cooperation in solving climate issues.
Here, '呼籲' reinforces a sincere exhortation or encouragement directed towards the students during the principal’s speech.