1. We saw her jovial aunt playing with a bunch of kids on beach.
    我们看到她和蔼快活的姨妈在沙滩上与一群孩子们玩耍。

2. He gave me a bunch of mellow grapes.
    他给了我一串甘美的葡萄。

3. And that the boiled water from a bunch of them makes an effective insecticide.
    沸水加一把烟蒂就成了很有效的杀虫剂。