I engaged myself to provide for Theodore, and the Baron promised to take the youngest under his protection.

我亲自照顾西奥多，男爵答应保护最小的孩子。

" No; I had just engaged myself to walk with Miss Tilney before they told me of it; and therefore you know I could not go with them, could I" ?

“不；在他们告诉我之前，我刚刚约好要和蒂尔尼小姐一起散步；所以你知道我不能和他们一起去，是吗？”