As you see. So P is: I am hungry. Q is: I can't concentrate.

正像你看到的，P是我饿了，Q是我无法集中精力。

youdao

Dining out after 6 p. m. meant going hungry - most restaurants were closing by then.

假如下午6点出赴吃饭，那就意味着挨饿了——大多数餐馆那个时候已经关门了。

youdao

Feed us at 8 a. m., 1 p. m. and 7 p. m., and we learn to get hungry as those hours approach.

早上八点、下午一点、晚上7点喂我们，我们就学会在快到这些时间会感到饿。

youdao