lay in a stock of

• 储备 ...
• 储存 ...

lay in a stock of的用法和样例：

例句

1. We need to replenish our stocks of coal.
   我们需要再次补充煤的储备。
2. I've got plenty of logs salted away for the winter.
   我已为冬天的到来储备了大量的干柴。

1. He laid a little of his pay away each month.
   他每月储存一点工资。
2. Surplus wheat is put in storage and shipped abroad.
   剩余的小麦被储存起来运到海外。