A squealing wheel heralds the arrival of the tea trolley.

车轮的吱吱声预示着茶车的到来。

Feeling considerably more cheerful, Harry joined Ron and Hermione in several games of Exploding Snap, and when the witch with the tea trolley arrived, he bought himself a very large lunch, though nothing with chocolate in it.

哈利高兴起来，便和罗恩、赫敏玩了几场游戏，等到推茶车的女巫来到的时候，他给自己买了大大的一份午饭，尽管里面没有巧克力。