singular-plural alternation. That said, I believe it's an analogous type of phenomenon. Semantics is stepping in and influencing the verb arrangement — it isn't usually a purely syntactical conclusion.知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。llylly 10.7k2525 silver badges4343 bronze bad