on the house

基本解释

The bottled water is on the house.
补充一句，这里提供免费瓶装水。
But the intrigued bartender really needs to find out, and offers the guy drinks on the house all night long if he lets him in on the secret.
但是着了谜的调酒师实在是很想知道，向那人提议说如果他告诉自己这个秘密，他可以在这里免费喝一晚上的酒。
Because of this, I am going to bring disaster on the house of Jeroboam. I will cut off from Jeroboam every last male in Israel-slave or free.
因此，我必使灾祸临到耶罗波安的家，将属耶罗波安的男丁，无论困住的，自由的都从以色列中剪除，必除尽耶罗波安的家，如人除尽粪土一般。

Ileana Ros-Lehtinen of Florida, the top Republican on the House Committee on Foreign Affairs, opposed the resolution.
They really don't.So, if everybody masters the material A I can say A's on the house.
他们真的不知道，如果每个人都掌握了知识,那么我敢说，人人可得。
麻省理工公开课 - 固态化学导论课程节选
On the stair leading up into the disinfectant-smelling twilight of a rooming house, she saw an old man huddled, shaking with grief she couldn't hear.
登上梯子，在一间散发着,消毒水气味的昏暗公寓里，她看到了一个老人缩成一团，以一种他无法感受的哀伤颤抖着。
耶鲁公开课 - 1945年后的美国小说课程节选

The owner of a restaurant tells Rowland that his meal is on the house.
FORBES: Oh, the Brass!