他小心翼翼地把古董花瓶放在展示柜上。

He carefully ___laid down the antique vase on the display shelf.

学校制定了新的行为准则。

The school ___laid down a new code of conduct.

为了赢得这场战役，将军不得不部署他最精锐的部队。

To win the battle, the general had to ___deploy his best troops.

他们在录音室里录制了三首新歌。

They ___laid three new songs in the studio.