请给出三个用英语表达的中文成语及其含义。
1. "Kill two birds with one stone" - 一举两得 (achieve two objectives with one action)
2. "Beat around the bush" - 拐弯抹角 (avoiding the main topic or being indirect)
3. "A piece of cake" - 小菜一碟 (something very easy to accomplish)