Cooking at home lowers your portion size.

自制菜肴可以减少食物用量。

We're getting much lower numbers and much lower average size.

我们现在收到的松露数量少了、平均的个头也变小了。

And since smaller bodies can hold fewer eggs, they result in fewer offspring, and a lower population size in the long run.

由于体型越小，它们的卵子就越少，后代也就越少，从长远来看，其种群规模也就越小。

So, it's like you didn't guess... you did the guess correctly, that's true; but you guessed a lower value for something, or a lower strength, or a lower size, etc.

所以，就好像你没有猜到… … 你猜对了，没错；但是您猜某物的价值较低， 强度较低，尺寸较小等。