例句 /

We had planned to give Mum a pleasant surprise on her birthday but Jimmy let the cat out of the bag when he said he had given all his savings to his elder sister to buy something for Mum.

We had planned to give Mum a pleasant surprise on her birthday but Jimmy let the cat out of the bag when he said he had given all his savings to his elder sister to buy something for Mum.

我们原来想让妈妈在生日那天有个意外惊喜,但吉米说他把他的储蓄都交给大姐去给妈妈买礼物时,他一语道破了天机。