Couldn’t a stern telling off have done the trick?

严厉的斥责不能奏效吗？

Mr. Jackson's work has done the trick.

杰克逊先生成功了。

For John, no amount of therapy, exercises or hypnosis has done the trick.

对约翰来说，再多的治疗、锻炼或催眠也无济于事。

The one who had done the trick was Pinocchio, who, not satisfied with that, dragged a heavy stone in front of it.

设下陷阱的正是皮诺乔。他对此还不满意，接着在门前放了块大石头。

All at once he understood: the woman he had searched had only been there as a blind; it was the friend who had done the trick.

突然他明白了：他寻找的那个女人只是瞎了眼；是朋友搞的鬼。