You have to lay something on the bed, or lay something on the floor.

你必须在床上放点东西，或者在地板上放点东西。

He went to his escritoire and pressed a secret spring, and a drawer flew out, and he laid something on the table.

他走到他的写字台前， 按下一个秘密的弹簧， 一个抽屉飞了出来， 他在桌子上放了一样东西。