一位经济学家表示：“法国是下一个需要当心的国家。

One economist said: "France is the next country to watch."

youdao

惟一需要当心的是枚举类型。 它被定义成一个 Class，而不是其他模型类中的 Interface！

The only other thing to watch out for is that an enumerated type is defined using a Class and not an Interface like other model classes.

youdao

我们也需要当心，不在其他方向上走的太远。

We also need to be careful not to go too far in the other direction.

youdao