这是一个好主意，因为这能告诉你是否需要在食物消失前赶快吃掉它们。

It's a great idea as it tells you whether you need to hurry up and eat the food before it goes off.

youdao

不能。当熊猫的食物消失时，熊猫也会消失。

No. When the panda's food disappears, the panda disappears.

youdao

但由于他们的食物消失了，鸟类的数量也减少了三分之一。

But with much of their food gone, the avian population is down by one third.

youdao