This is the 4571st most frequent Chinese word.
正当
"Justifiable" or "proper."
Here, '正当' is used to indicate a certain time coinciding with an action, emphasizing simultaneity.
正当我们准备出发,突然下起了大雨。
Just as we were about to set off, it started raining heavily.
In this example, '正当' is used as an adjective that means 'proper' or 'justifiable'.
他现在的行为是完全正当的,没有违反规定。
His current action is entirely legitimate and does not violate the rules.
Here, '正当' is employed to describe something as fair, reasonable, or equitable.