三轮车

例句：

1. 1. We need to buy a new tricycle for the children.
   我们需要为孩子们买一辆新的三轮车。
2. 2. The tricycle was used as a means of transportation in the old days.
   三轮车在旧时代用作交通工具。
3. 3.The tricycle is a popular choice for those who want to save time and money.
   三轮车是那些想要节省时间和金钱的人的热门选择。