But soon, pinned to the wall, I had to explain myself straight out.

但不久我被逼只得明确地表示我的意见。

Every night before he went to sleep, Harry ticked off another day on the piece of paper he had pinned to the wall, counting down to September the first.

哈利把九月一日以前每天的日期一天一天写在一张纸上，钉在墙上，每天临睡前就在第二天的日期上打一个钩。

As long as I could deny the reality of the business, I confined myself to a flat " no comment." But soon, pinned to the wall, I had to explain myself straight out.

只要我能否认业务的现实，我就会简单地“不予评论” 。但很快，我就被钉在墙上， 不得不直接解释自己的情况。