volvox

例句：

1. 1. The volvox is a type of car that has been around for decades.
   沃尔沃X是一种已经存在几十年的车型。
2. 2. The volvox is known for its safety features and reliability.
   沃尔沃X以其安全特性和可靠性而闻名。
3. 3. The volvox has been designed to be fuel-efficient and environmentally friendly.
   沃尔沃X被设计成燃油效率高且环保。